IN THE 1920’s THE ARMSTEAD SNOW MOTOR WAS DEVELOPED USED TO CONVERT A FORDSON TRACTOR INTO A SCREW -DRIVEN VEHICLE WITH A SINGLE PAIR OF CYLINDERS

Fordson was a brand name of tractors and trucks. It was used on a range of mass-produced general-purpose tractors manufactured by Henry Ford & Son Inc from 1917 to 1920, by Ford Motor Company (U.S.) and Ford Motor Company Ltd (U.K.) from 1920 to 1928, and by Ford Motor Company Ltd (U.K.)