21 Combine was commemorated with a Canada Post stamp on June 8, 1996.
21 which was tested in 1940, and put on sale in 1941. It was too heavy and expensive for extensive mass production, but served as a guide for the design of the lighter and less costly No. Grain harvesting was revolutionized by Massey engineer Tom Carroll in 1938, with the world's first affordable, mass produced, self-propeled combine- the No. The company's early tractor models included the 20 horsepower Massey-Harris GP 15/22 (1930–36), 25 horsepower 'Massey-Harris Pacemaker' (1936–1939), 35 horsepower Model 101 (1938–1942), Massey-Harris Pony, Model 20, Model 81, and Model 744. In 1910, Massey-Harris acquired the Johnston Harvester Company of Batavia, New York, making it one of Canada's first multinational firms. Massey-Harris made threshing machines and reapers, as well as safety bicycles, introducing a shaft-driven model in 1898. Harris, Son and Company to form Massey-Harris Limited, which became the largest agricultural equipment maker in the British Empire. Share of Massey-Harris Limited, issued February 18, 1916 A labor shortage throughout the country also helped to make the firm's mechanized equipment very attractive. Through extensive advertising campaigns, it became one of the most well-known brands in Canada. The company expanded further and began to sell its products internationally. The huge complex of factories, consisting of a 4.4-hectare (11-acre) site with plant and head office at 915 King Street West (now part of Liberty Village), became one of the best-known features of the city. In 1879, the company moved to Toronto, where it soon became one of the city's leading employers. Daniel Massey's son, Hart Massey, subsequently renamed the enterprise as the Massey Manufacturing Co.
The company made some of the world's first mechanical threshers, at first by assembling parts from the United States, but eventually designing and building its own equipment. In 1847, Daniel Massey established the Newcastle Foundry and Machine Manufactory in what is now Newcastle, Clarington, Ontario, Canada. 1.4 Wallis Gas Tractor and wider influence.