Board of Ordnance Papers WO 46/2596, WO 47/44, WO 4712600, WO 47/2658.
O.F.G.Hogg. The Royal Arsenal. 1963.
De Witt Bailey. 1999. British Board of Ordnance Small Arms Contractors
1689 to 1840.
Industrial Heritage is published by Hudson History, Proctor House, Kirkgate,
Settle, Yorkshire. Enquiries to Phil and Rita Hudson at http://www.users.daelnet.co.uk/hudson-history/