Grace's Guide

British Industrial History

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,100 pages of information and 233,633 images on early companies, their products and the people who designed and built them.

McDonald Tractors

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1908 Introduced the EA tractor with 20-hp two-cylinder engine with three-speed and reverse gearbox

1913 Introduced the EAA improved tractor

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