The Shooter’s Companion

Shotguns·makers·models·history

An independent reference on sporting shotguns, for shooters, collectors, buyers and sellers.

British Proof Authority: cautionary advice to the gun trade

Citation

PublisherBritish Proof Authority; London and Birmingham Proof Houses
Date2014-09-17
Typeproof house

Original · Archive

Cited by

Revised 2026-10-14