Original WWI British Army Short & Mason Mk VII Prismatic Marching Compass by J.D. Watson Optician Edinburgh with Leather Case cars offering an early warning system

offering an early warning system

functional design of earlier models

or those building replica setups

or small‑arms history

Original WWI British Army Short & Mason Mk VII Prismatic Marching Compass by J.D. Watson Optician Edinburgh with Leather Case cars offering an early warning systemAn excellent and highly collectable Original British Army Mk VII Prismatic Marching Compass, manufactured by the renowned Short & Mason Ltd, London and retailed by J. D. Watson, Optician, Edinburgh. Complete with its original brown leather carrying case, this is a classic piece of British military navigation equipment dating from the First World War and early inter war period. The Mk VII was one of the British Army's most important field compasses and