July 12, 2026

BOYD

James Boyd & Brother Inc. (1910-1916)
Philadelphia, Pennsylvania


This is a Boyd radiator & hub emblem (c1912-1916)  ms
Size: Unknown   MM: Unknown

The Boyd & Son Fire Equipment Company was formed in Boston, Massachusetts in 1819 and was renamed James Boyd & Bro. in 1881, although the business was not incorporated until 1908, by which time the company was manufacturing a line of high quality horse-drawn fire apparatus.

In 1910, James Boyd & Bro. delivered its first motor fire apparatus built on its own assembled chassis. This was the 60 hp four-cylinder Boyd Model B-701 automobile combination chemical engine and hose wagon, which carried two 30-gallon chemical tanks. The companion Boyd Model C-702 auto combination carried a single 35-gallon chemical tank.

In the early years of motor fire apparatus, Boyd also built hose and combination hose and chemical bodies for mounting on other truck chassis, mainly on White, Reo and Mack chassis.

In 1913, Boyd introduced its own motor-driven aerial ladder truck, which used motor power to raise the aerial ladder. Fourteen Boyd aerials were delivered to the Philadelphia Fire Department between 1913 and 1916. Other Boyd aerials used hybrid gasoline-electric drive systems purchased from Couple Gear.

In addition to hose wagons, combinations and aerial ladder trucks, Boyd also built some heavy two-wheel, front-drive motor tractors to replace horses on formerly horse-drawn steam fire engines and ladder trucks.

The James Boyd & Bro. factory closed in 1918 but the business passed into other hands and continues to this day, most recently under the National Foam banner.

Emblems

There are a number of original period photos of Boyd fire appliances but very few show the radiator emblem and mostly the detail is unclear.

The following original period photo shows a Boyd combination chemical engine and hose Model C motor fire apparatus probably dating from about 1910:

Boyd Combination Chemical and Hose Fire Apparatus (c1910)  missouribootandshoe

The front of the radiator cannot be seen but there is a small nameplate attached to the side chassis frame member under the driver's entrance. This would be similar to the later painted brass James Boyd & Bro. Inc. nameplate shown below giving the production date and a stamped serial number. This Boyd nameplate is very rare.

This is a Boyd nameplate (1915)    mjs
Size: 144mm wide 48mm high

The following Boyd advertisement from 1912 includes an original photo of two fire trucks delivered to Philadelphia. The radiators of these trucks are clearly seen and it appears that there is a radiator emblem but the detail is unclear:

Boyd ad showing fire apparatus (1912) municipal journal

Boyd Fire Apparatus delivered to Philadelphia (1912)

However, the following Boyd advertisement from January 1913 has a clearer original photo of a Boyd Fire Apparatus delivered to Leominster, Massachusetts:

Boyd advertisement (1913) municipal journal

This Boyd fire apparatus was presumably built in 1912 and, as seen below, displays the body side Boyd nameplate mounted below the driver's cab entrance, similar to that shown earlier above. The unit also clearly displays a round radiator emblem with a light colored outer band and a "colored" hubcap emblem:

Boyd Fire Apparatus showing radiator & hub emblem & body side nameplate (1912)

The following Boyd advertisement from 1913 incorporates a James Boyd & Bro. Inc. logo, which also has a light colored outer band, see detail below. The same logo is seen in Boyd advertisements up to 1916.

Boyd fire apparatus advertisement showing logo (1913) municipal journal 

Boyd Logo detail (c1912-1916)

This logo was used for the Boyd hubcap emblem, see example shown below. This red, white, maroon and blue painted Boyd hub emblem is very rare:

James Boyd & Bro hubcap (c1912-1918)   dkc

It is not unusual for the emblem used on a hubcap to also be used as the radiator emblem and it is believed that the Boyd radiator emblem was the same as the hub emblem, see the Boyd emblem shown above at the top of this post and again below. This Boyd emblem is very rare.

This is a Boyd radiator & hub emblem (c1912-1916)  dkc
Size: Unknown   MM: Unknown

The two-wheel, front-drive Boyd motor tractor pulling a steamer shown in the following photo dated 1916 has a heavy, possibly cast iron, radiator, which carries a very different and much larger radiator emblem:

Boyd two-wheel, front-drive motor tractor (1916)  matt lee

Unfortunately, the detailed design of this radiator emblem cannot be seen. If you have better details of this Boyd radiator emblem used for heavy duty cast radiators, please let me know, in order to update this post.





THOMAS-DETROIT

E R Thomas Detroit Co. (1906-1908)
Detroit, Michigan 


This is a Thomas-Detroit radiator emblem (1907-1908)  ckepc
Size: Unknown   MM: Unknown (prob None)

Erwin Ross Thomas was successfully building 50 hp four-cylinder Thomas cars in Buffalo, New York (see Thomas) but, in February 1906, he agreed to help finance Howard E Coffin and Roy Chaplin from the Olds Motor Works to produce a smaller but similarly high-quality 40 hp four-cylinder car in Detroit, initially to be called the Thomas Forty. The E. R. Thomas Detroit Company was set up in May 1906 and a site for a factory in Detroit was found in June 1906. 

The first Thomas Forty cars appeared in October 1906 and were well received. The Thomas Forty was built in Detroit but was marketed by Erwin Thomas in New York. By June 1907, Thomas had marketed 503 Thomas Forty cars, the largest number ever sold by any automobile company in the first year. Erwin Thomas then called for another 750 cars.

Thomas Flyer cars built in Buffalo had been extremely active and successful in auto contests, whereas the Thomas Forty cars built in Detroit took only a modest involvement in automobile contests before 1907. In June 1907, however, a Thomas Forty came 3rd in the 24 hour endurance race at the Michigan State Fairground and won the 24 hour endurance race in Chicago in the same month. Together, Thomas Flyer and Thomas Forty cars won 75% of all important contests of speed, hill climbing, reliability and endurance tests in 1907. 

In September 1907, it was announced that Thomas cars built in Detroit would be known as "Thomas Detroit" instead of Thomas Forty to avoid confusion with the Thomas Flyer built in Buffalo, New York. Interestingly, there was no hyphen in the name "Thomas Detroit" in the announcement, although advertisements and automobile press statements sometimes did use the name "Thomas-Detroit" with a hyphen.

Coffin and Chaplin were unhappy with the marketing and sales being controlled by Erwin Thomas and persuaded Hugh Chalmers of Detroit to buy a controlling interest in the E. R. Thomas Detroit Company. Hugh Chalmers became President of the company in December 1907. 

The Thomas Detroit was entered into and won many automobile contests in 1908. The New York Tribune in June 1908, for example, carried a Thomas Detroit advertisement listing the Thomas Detroit victories achieved during May 1908, including the Endurance Runs held in Detroit, Hartford, Kansas City, Baltimore-Hagerstown and Minneapolis, and the Cincinnati, Albany and Wilkesbarre Hill Climbs plus several more.

The Thomas-Detroit became the Chalmers-Detroit in June 1908 (see Chalmers-Detroit). A press announcement in July 1908 simply stated that henceforth the Thomas-Detroit Forty will be known as the Chalmers-Detroit Forty and that there was no change in company ownership or personnel.

Emblems

There are very few original period photos of Thomas-Detroit cars showing the radiator before mid-1908 when the Thomas-Detroit became the Chalmers-Detroit. The many fine period photos taken at the Savannah Grand Prize Races in October 1908 labeled as Thomas-Detroit are in fact Chalmers-Detroit race cars, even though they may have been entered as Thomas-Detroit cars.

The following examples, however, are believed to be 1907 Thomas-Detroit cars but show no sign of an emblem:

Thomas-Detroit Forty race car with no emblem (1907)  hcg

Thomas-Detroit Forty with no emblem (1907)   dpl

It is possible that the "Thomas Detroit" name was initially only displayed on a serial nameplate and on the hubcaps, see examples shown below:

Thomas-Detroit Model C serial nameplate (1907)  tomlaferriere

This is a Thomas Detroit hubcap (1906-1908)  dkc

The following advertisement includes a photo of a possibly later 1907-built Thomas-Detroit Forty displaying an emblem. The photo was taken in February 1908 during a high speed endurance run:

Ad showing the Thomas-Detroit Forty Snow Bird (1908) prewarcar

The Thomas-Detroit Forty carried a round radiator emblem and a brass radiator script, see more detailed photo below. Original Thomas Forty radiator scripts with this design are extremely rare.

1907 Thomas Forty Snow Bird with radiator emblem & script (photo 1908)    ms

The following original period photo shows a 1908 Thomas-Detroit also carrying a round radiator emblem:

Thomas-Detroit showing radiator emblem (1908)  dpl

Detail showing round Thomas-Detroit radiator emblem (1908) 

The Thomas-Detroit radiator emblem was a round stamped brass, painted, see example shown above at the top of this post and again below. This emblem is believed to have been originally soldered to the radiator tank top, so any holes used for screws to mount this emblem on a display board are not original. This Thomas-Detroit radiator emblem is extremely rare.

This is a Thomas-Detroit radiator emblem (1907-1908)  ckepc
Size: Unknown   MM: Unknown (prob None)





May 05, 2026

WOLVERINE

Reo Motor Car Co. (1927-1928)

Lansing, Michigan


This is a Wolverine radiator emblem (1928)      mjs
Size: 66mm wide 52mm high    MM: Unknown (probably D L Auld)

The Wolverine was manufactured by the Reo Motor Car Company as a smaller companion car to the Reo Flying Cloud (see Reo) to compete in the lower priced car market.

The Wolverine Six, introduced in May 1927, was an assembled 50 hp six-cylinder car offered initially as a brougham with cabriolet and sedan styles available in 1928. 

The Wolverine name was discontinued by Reo in December 1928 when Reo changed their Flying Cloud line up. The Wolverine Six was replaced by the Reo Flying Cloud Mate in 1929.

Emblems

The first Wolverine Six radiator emblem was finished in opaque blue enamel with a white enamel "6" and appeared in May 1927, see example below, which may have been originally gold plated. This Wolverine radiator emblem is extremely rare.

This is a Wolverine radiator emblem (1927)    sam
Size: 66mm wide 52mm high   MM: Unknown (possibly D L Auld)

The following is an original un-used example of this Wolverine radiator emblem. This Wolverine 
radiator emblem is also extremely rare.

This is a Wolverine radiator emblem (1927)    tcc
Size: 66mm wide 52mm high   MM: D L Auld

This Wolverine radiator emblem has a flat back with no maker's mark but has an Auld mounting cup device. All other Wolverine radiator emblems that I have seen have the detailed design of the emblem impressed into the back of the emblem and where it is possible to see how the emblem was attached to the radiator there is evidence of an Auld mounting device.

There appears to have been a change to the die used to make the Wolverine radiator emblem later in 1927, as seen in the following photo of a Wolverine radiator emblem in the Smithsonian Automobile Emblem Collection. As well as some minor differences in detail, the most visible change was to make the circumference of the emblem a regular circle, whereas the previous emblem shown earlier above had an irregular circumference. This Wolverine radiator emblem is extremely rare.

This is a Wolverine radiator emblem (1927)    sac
Size: 66mm wide 52mm high   MM: Unknown (possibly D L Auld)

There was a change in color used on the Wolverine radiator emblem in late 1927 or early 1928 to transparent blue enamel with a black enamel "6", see example shown below. This Wolverine radiator emblem is very rare. All examples of this emblem that I have seen were finished in nickel plate.

This is a Wolverine radiator emblem (1927-1928)    mjs
Size:66mm wide 52mm high   MM: Unknown (possibly D L Auld)

The Wolverine radiator emblem was changed again to a transparent red and opaque white enamel "6" version, which is believed to have been introduced for the 1928 model year, see example shown above at the top of this post and again below.  This Wolverine radiator emblem is rare. This emblem usually appears to be un-plated but it was originally gold plated.

This is a Wolverine radiator emblem (1928)    mjs
Size: 66mm wide 52mm high   MM: Unknown (possibly D L Auld)




CHALMERS-DETROIT

Chalmers-Detroit Motor Co. (1908-1910)

Detroit, Michigan


This is a Chalmers-Detroit radiator emblem (c1909)     ms
Size: Unknown (poss 57mm diameter)   MM: Unknown

In 1906, Erwin Ross Thomas, who was successfully building 50 hp four-cylinder Thomas Flyer cars in Buffalo, New York, agreed to finance Howard E Coffin and Roy Chaplin from the Olds Motor Works to establish the E. R. Thomas-Detroit Company to produce a smaller but similarly high-quality 40 hp four-cylinder car in Detroit to be called the Thomas Forty initially and later the Thomas-Detroit.

The Thomas-Detroit business was successful but Coffin and Chaplin were unhappy with the marketing and sales of the Thomas-Detroit being controlled by Erwin Thomas and persuaded Hugh Chalmers of Detroit to buy a controlling interest in the E. R. Thomas-Detroit Company. Hugh Chalmers became President of the company in December 1907. 

The Chalmers-Detroit Motor Company was formally established in June 1908 and the first 40 hp Chalmers-Detroit cars appeared that month marketed as 1909 models. Initially, the Chalmers-Detroit Forty was essentially the Thomas-Detroit Forty with a new emblem and a new name. A new smaller 24 hp Chalmers-Detroit model was also offered and this became the 30 hp Chalmers-Detroit for the 1909 model year.

Following the earlier success of the Thomas-Detroit in auto events, the Chalmers-Detroit was also very successful in racing car events, endurance and reliability contests and tours and quickly gained a reputation for performance and endurance winning numerous major competitions. The Chalmers-Detroit claimed sixty-nine major auto competition wins in its production period through 1908 and 1909.  

The Chalmers-Detroit became a popular and highly regarded motor car attracting the interest of some of America's wealthiest businessmen and car owners, including the Vanderbilts and the Rockefellers.

Chalmers-Detroit reorganized as the Chalmers Motor Company in January 1910 and the new name appeared in about July 1910 at the start of the 1911 production cycle and, thereafter, all cars were known simply as "Chalmers" (see Chalmers).

Emblems

Original photos of Chalmers-Detroit cars taking part in contests in 1908-1909 indicate that some cars carried a round radiator emblem, some only a radiator script, some with both a radiator emblem and radiator script and some without any emblem or script at all, see examples below showing a variety of different brass radiator scripts. It is noted that some early period photos of Chalmers-Detroit cars show painted radiators, perhaps to brighten the appearance of the car to would be buyers.

Chalmers-Detroit Long Island Motor Parkway Sweepstakes (Oct 1908) dpl

Chalmers-Detroit Savannah Races (Nov 1908)  dpl

Chalmers-Detroit Blue Bird at Shingle Hill Climb (May 1909)  dpl

Chalmers-Detroit 40 at NY Orphans Day Outing (June 1909)  dpl

Chalmers-Detroit at Point Breeze races (June 1909)   dpl

Chalmers-Detroit cars on Glidden Tour (July 1909)

Chalmers-Detroit 30 Denver to Mexico City Endurance Run (Oct 1909)  dpl

Chalmers-Detroit on NY to Atlanta Good Roads Run (Oct 1909)  dpl

The use of large brass radiator scripts was helpful in clearly showing the name of the car in publicity photos and in newspapers. Original brass Chalmers-Detroit radiator scripts as shown in the photos above and in the example shown below are very rare.

This is a Chalmers-Detroit radiator script (1908-1909)    mjs
Size: 510mm

Most but not all of the period photos of Chalmers-Detroit cars show a round radiator emblem, see another example shown below. However, the detailed design of the radiator emblems cannot be seen with any clarity in these photos.

Chalmers-Detroit at Long Island Sweepstakes (Oct 1908)  dpl

Detail showing radiator & emblem

These early Chalmers-Detroit radiator emblems are believed to have been simple round, painted stamped brass emblems.

A brochure detailing the 1909 Chalmers-Detroit models includes what appears to be an illustration of the Chalmers-Detroit radiator emblem on the cover, see below:

1909 Chalmers-Detroit brochure cover (1908) 
chucks toyland

 1909 Chalmers-Detroit radiator emblem illustration (1908)

This Chalmers-Detroit emblem illustration is likely to have been made in mid-1908 for printing ahead of the 1909 production cycle, which began at the same time as the formal establishment of the Chalmers-Detroit Motor Company. It is noted that this illustration appears to indicate a gold finish to at least some parts of the emblem.

It is likely that this emblem illustration was intended to show the first Chalmers-Detroit radiator emblem planned for use from about June 1908. However, I cannot yet confirm that this illustration is totally accurate.

The following photo shows a part view of an early Chalmers-Detroit radiator with a much corroded radiator emblem but it is clear enough to show the basic design, which is very similar to the radiator emblem illustration shown above, although some of the detail is obscured by corrosion. 

This is a Chalmers-Detroit radiator & emblem (1908 or 1909)  ms

This is the Chalmers-Detroit radiator emblem (1908 or 1909)  ms 

The following photo shows another early Chalmers-Detroit radiator emblem soldered to a radiator. This Chalmers-Detroit radiator emblem is closely similar to the corroded emblem shown above, although some of the detail is obscured in the corroded emblem photo.The emblem is also similar to the Chalmers-Detroit brochure illustration shown earlier, although some details are different, for example there is no dot after the letter "A" in "USA". 

This is a Chalmers-Detroit radiator emblem (c1908)  chalmersregistry
Size: Unknown (likely 57mm diameter)   MM: Unknown (likely None)

The following stamped brass Chalmers-Detroit emblem appears to be the same as the emblem shown above apart from some very slight font differences in the lettering, for example the letter "R" in "DETROIT". The font differences may be due to the Chalmers-Detroit radiator emblems being produced by more than one emblem maker.

This is a Chalmers-Detroit radiator emblem (poss 1908)  tcc
Size: 57mm diameter
   MM: None

This Chalmers-Detroit radiator emblem was originally painted and is believed to be an original emblem and is extremely rare. There is no sign of any gold plating. The following photo shows this same emblem now repainted as it was originally:

This is a painted Chalmers-Detroit radiator emblem (poss 1908) tcc
Size: 57mm diameter     MM: None

The following photo of a surviving 1908 Chalmers-Detroit Thirty Model F Tourabout carries a similar radiator emblem, although the detailed design is somewhat different:

1908 Chalmers-Detroit Thirty   justacarguy

Chalmers-Detroit Thirty radiator with emblem and script (1908) steve sexton

Close up showing Chalmers-Detroit radiator emblem (1908) 

The radiator emblem seen here is believed to be original, although the brass radiator script mounted on the radiator is most likely a reproduction made for the restoration of the car and follows similar radiator script designs seen on the original period photos shown earlier.

The following is believed to be a detailed photo of the very same stamped brass Chalmers-Detroit radiator emblem shown above, which was painted originally with some paint remaining. The emblem differs from the Chalmers-Detroit radiator shown earlier above in the font used for some of the lettering and, more obviously, with the introduction of a hyphen in the name "CHALMERS-DETROIT" followed by a dot and the absence of a dot after the letter "U" in "USA".  

This is a Chalmers-Detroit radiator emblem (1908-1909)  kmc
Size: Unknown (probably 57mm diameter)  MM: Unknown (probably None)

This Chalmers-Detroit radiator emblem is also believed to be original and is extremely rare.

There was a blue and white enamel version of this Chalmers-Detroit radiator emblem, as shown above at the top of this post and again below. 

This is a Chalmers-Detroit radiator emblem (1909)   ms
Size: Unknown (poss 57mm diameter)   MM: Unknown

This Chalmers-Detroit radiator emblem has, so far, not been seen on any illustrations or period photos of Chalmers-Detroit cars and may have been the first attempt at an enamel Chalmers-Detroit radiator emblem produced in mid 1909 ready for the start of the 1910 model year production cycle. This Chalmers-Detroit radiator emblem is extremely rare and possibly ultra rare.

The actual Chalmers-Detroit radiator emblem chosen for the 1910 model year was an entirely new design, see example below. This Chalmers-Detroit radiator emblem is very rare.

This is a Chalmers-Detroit radiator emblem (1909-1910)   sac
Size: 58mm diameter     MM: Unknown

This Chalmers-Detroit radiator emblem is seen on the following original period photo of a Chalmers-Detroit taken in 1909:

Chalmers-Detroit with the new enamel radiator emblem (1909)  hcg

Chalmers-Detroit advertisements from late 1909, show accurate illustrations of this radiator emblem, see the example shown below from The Automobile in December 1909, which shows two different illustrations of the Chalmers-Detroit radiator emblem.

Chalmers-Detroit ad showing two emblems (1909) ta

Close up showing emblem illustrations (1909)

The emblem illustration on the left shows the new Chalmers-Detroit radiator emblem seen in the photo shown above. The emblem illustration on the right shows the same emblem but with what appears to be a lighter and brighter finish to the metal adjacent to the enamel, possibly bright nickel or gold. The following photo shows a Chalmers-Detroit radiator emblem, which may be gold plated. This Chalmers-Detroit radiator emblem is extremely rare. 

This may be a gold plated Chalmers-Detroit radiator emblem (1909-1910)  ms
Size: 58mm diameter    MM: Unknown

The following photo shows the radiator emblem on a surviving 1910 Chalmers-Detroit Model K Thirty. This radiator emblem has the same "CD" central logo as the 1910 enamel finished Chalmers-Detroit radiator emblem shown earlier above. It is not known if this radiator emblem was originally finished in enamel. However, this emblem appears to have lost any enamel that it might have had originally and is brightly plated all over. This may have been a relatively recent restoration of the emblem but I cannot confirm this. 

This shows a domed metal Chalmers-Detroit radiator emblem (1910)  bonhams

Most significantly, this Chalmers-Detroit radiator emblem appears to be domed in the center. A detailed close examination carried out by Karla Maxwell has confirmed that this is indeed a quite different Chalmers-Detroit radiator emblem set in a bezel and with a domed center area showing the "CD" logo. The lettering around the outer circumference uses a quite different font and appears to be recessed. 

Chalmers-Detroit emblem comparison (1910)  kmc

It is not known when this domed Chalmers-Detroit radiator emblem was made but, if it is an original Chalmers-Detroit radiator emblem made in 1910, it would be extremely rare and possibly ultra rare.

Chalmers-Detroit was reorganized as the Chalmers Motor Company in January 1910 but the "Chalmers" name did not replace "Chalmers-Detroit" until the start of the 1911 production cycle. The following Chalmers-Detroit emblem illustration, which is date tagged 1911, is believed to have been taken from a 1910 Chalmers-Detroit advertisement ahead of the 1911 model year:

Chalmers-Detroit rad emblem illustration (1910)  hperc

Presumably, this monochrome illustration represents a dark blue on white enamel radiator emblem. The emblem illustrations used in 1909 Chalmers-Detroit advertisements for the 1910 model year were accurate representations of the emblem, as seen earlier above. It is most likely, therefore, that this illustration accurately depicts a real Chalmers-Detroit radiator emblem, possibly planned for the 1911 model year. It is likely that this emblem did not proceed to manufacture but, if such an emblem was actually made, it would be ultra rare.