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 146,096 pages of information and 231,598 images on early companies, their products and the people who designed and built them.

Armstrong Siddeley Motors: Leopard

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Note: This is a sub-section of Armstrong Siddeley Motors: Aero Engines

See Royal Aircraft Factory: R.A.F.25

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