Important military instrument, shoulder rangefinder, used in the Second World War. The rangefinder was particularly useful for finding the range of a target, such as in naval artillery and anti-aircraft artillery. Complete with its accessories, all its parts, optics cover, carrying straps. In original wooden box. With instruction booklet. RANGEFINDER - TELEMETER Type FT37 - Barr & Stroud - Navigational Rangefinder