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Description: | 1 poster, colour photographic reproduction. 'The Quiet Revolution in Tractor Transmission' / David Brown Tractors Ltd., printed in England by Petty & Sons, Leeds, [c1978] [diagram of David Brown Hydra transmission, tractors moving loads, ploughing etc.] 30" x 40", 76.3 x 101.7 cm. | License: | http://creativecommons.org/licenses/by-nc-sa/2.5/ | Subjects: | posters | Temporal: | 1978 | Source: | Science Museum | Identifier: | 1986-1381/18 | Go to resource |
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