These might be of help: British Napoleonic Field Artillery: The First Complete Illustrated Guide to Equipment and Uniforms Paperback – Illustrated, 1 April 2012 by C. E. Franklin
British Napoleonic Artillery 1793-1815 (1): Field Artillery: v. 1 (New Vanguard) Paperback – Illustrated, 18 Oct. 2002 by Chris Henry
Mike
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