Massey-Harris Company Limited
revolutionized harvesting in 1938 with the world's first self-propelled
combine - the No. 20. Unfortunately, it was too heavy and expensive
for extensive mass production. However, it served as a guide for the
building of the lighter and cheaper No. 21, which was tested in 1940 and
put on sale in 1941. It was ideal for many farms and being small and
compact, could be loaded on a truck, making it possible for operators to
follow the harvest from south to north.
In 1944, permission was given to build 550 units above the imposed
wartime production quota. They were used by the famous «Harvest Brigade»
which achieved records which could not be matched by any other machine.
The «Brigade» was continued in 1945, and was followed by the «Famine
Fighter» program of 1946.
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