Keystone Manufacturing Company Boston, Massachusetts 1919-1960 Founders: Edward Swartz, J. M. Welsman, Isadore Marks and Benjamin Marks  Keystone Manufacturing Company was founded in 1919 to produce moving picture machines.  Interestingly, at the time Isadore and Benjamin Marks were the president and treasurer, respectively, of the Marks Brothers Company, which had been in the toy business since 1911.  In 1924, Keystone started their line of pressed steel toys, for which it is best known.  The line of toys was modeled after the Packard trucks of the day and featured the Packard logo on the grill.  In 1932, Keystone introduced a line of pressed steel “Ride ‘Em” vehicles of which the mail plane is the most recognized.  Keystone began producing wooden toys in the 1930s with the acquisition of Jacrim Manufacturing Company, another local Boston toy company.  Isadore and Benjamin Marks had a controlling interest in Jacrim since 1926, only four years after Jacrim was founded.  Keystone Manufacturing would continue producing film equipment, pressed steel and wooden toys until 1953 when the company was divided.  Keystone Manufacturing produced the film equipment and pressed steel toys while Keystone Wood Toys handled all of the wooden and “tekwood” toys.  In 1954, the company would split again forming the Keystone Camera Company and Keystone Manufacturing Company, which continued to produce the pressed steel toys.  Keystone Wood Toys ceased production in January 1958 and Keystone Manufacturing continued on until 1960.  In 1965, Keystone Camera Company was purchased by Berkley Photo and in 1967 was moved from the Boston location, thus ending the existence of the Keystone Manufacturing Company. Derrick Clow collectingkeystone.com
Keystone toy list by Richard Mueller
Wood-Truck c. 1950 11.5"L x 3.5"H x 2.75"W $30 - $40	Aircraft-Carrier #219 c. 1950 15.5"Lx7.25"Hx3.7"W $30-$40	Hand-Car c. 1950 10"L x 5"H x 4.5"W $135 - $180	Fireman Mickey 17.5"L x 5.5"H x 3"W	“Mickey” Mouse with Cymbals Estimated 1950 7.75”L x 9.5”H x 4.5”W $180 - $240
"Tot" Railroad	Tot Railroad Train Set 1951 12"L x 1.25"H x 1.25"W $30 - $40; Box $20 - $30	Shootin' Frontier Set	Mosquito C-5 Boat	Kiddie Circus 10"L x 8"H x 6"W
Kiddie Circus Lined Up	Radar Rocket Ship w/ Box Estimated 1950 14"L x 3.5"H x 3.25"W $120 - $160	Shooting Battleship Box #222	US Cruiser #C42	C12 Aircraft Carrier
Battleship #B15	Battleship #22	Cruiser	Exploding Battleship #206	Car Ferry
Exploding Ship with Atomic Sub #361	Indian Raid #829	Sand Pail and Shovel Set #360	House Cart Model 425	Wagon "California or Bust" Estimated 1950 23.25”L x 12”H x 4”W $30 - $40
Wood Block Village	Circus Calliope 1951 18.5”L x 8”H x 5”W $210 - $280	Woodpecker Estimated 1950 5.5”L x 6.5”H x 3”W $90 - $120	Prairie Flyer c. 1950 16"L x 6.5"H x 5.5"W $175 - $250	The World's Greatest Circus Truck Estimated 1950 24"L x 11.25"H x 8"W $3000 - $4000 Click photo for more info
Horse and Carriage c. 1950 10"L x 3.75"H x 3.3"W $30 - $40	Chuck Wagon 15.5"L x 8.75"H x 5.75"W	Marching Majorette and Drummer Estimated 1950 10.75”L x 10.25”H x 4.5”W $150 - $200	Singing Cowboy Estimated 1950 10.5”L x 12”H x 5.5”W $120 - $160	Dog Playing Piano Estimated 1950 11.75”L x 12”H x 5”W $150 - $200
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