Beautifully presented pair of rare Ross & Barr rangefinder on original stand. An identical set is part of the Imperial War Museum collection.

Stamped on the backplate with maker's name, broad arrow mark and numbered 4687, and inscribed AA Mark III, with prismatic sights, objectives with shade slides, dual pinhole sights, brass calibration, adjustment wheels with turned wood handles, orientation compass to one side, carry handles to top. On original tripod, refurbished and polished, with military canvas spreaders.