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| Keywords: Howard Grubb Reflexvisier 2.jpg reads Photographs showing sight attached to rifle Reflexvisier nach einem Patent von Sir Howard Grubb 1844 1931 entworfen von J Emerson Reynolds und G Rudolf Grubb Howard Grubb A New Collimating-telescope Gun-Sight For Large And Small Ordnance In The Scientific transactions of the Royal Dublin Society Vol VII August 1901 S 321 “330 author 1901 <gallery>Howard Grubb Reflexvisier 1 jpg Reflector reflex sight howard grubb 1901 png</gallery> US Patent http //www google de/patents/US683203 dq 683203 683203 Reflector sights 1901 photographs Aiming Lee-Metford rifle PD-old | ||||
