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SB 43pp +73 line drawing plates 2018 N&MP Reprint of 1920 HMSO Original Edition
HANDBOOK OF FIREWORK AND SIGNALLING STORES IN USE BY LAND, NAVAL AND AIR SERVICES 1920
Covered in this corrected to January 1920 SECRET handbook are Bombs, Cartridges, Flares, Grenades, Rockets, Signals etc. With 73 clear technical line drawing plates, this is a very good official guide to signalling ordnance, much of which was in service during the Great War.