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Title: photograph [Go to resource]
Description: Hornsby's trials of vehicles fitted with Roberts' patent chain track; 1st experiment; shows an oil powered traction engine (20B?) fitted with the caterpillar track crossing a mound marked as soft sand Subjects: Engineering Source: Lincolnshire County Council Identifier: http://www.lincstothepast.com/Records/Re... Go to resource More Like this...
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