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Home / The Guns / Markings / Proof Stamps

Proof Stamps

Marking on right hand side plate. .303 2.222″ / BNP 18.5 TONS PER O”. Modern proof mark for .303-inch ammunition. From Birmingham Proof House. Pressure rated at 18 tonnes per square inch.

Marking on right hand side plate. DA / 91. Deactivated at London Proof House in 1991.

Marking on water jacket. DA / 86. Deactivated at Birmingham Proof House in 1986.

Sources

Goldsmith, 1994
Skennerton, 1988; 1997

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This page is published by the Vickers MG Collection & Research Association, a not-for-profit company, limited by guarantee, registered in England, Company Registration Number 07855202 – www.vickersmg.org.uk

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