细节
A military-pattern 2-inch brass three-draw telescope,
by Ross London, No: 6901 dated 1915, with tapering leather-covered outer body-tube, lens-hood and eye-piece dust-slide, 33in. (83.8cm.) long, extended; a gun-sight telescope by Alexander Martin in case; a prismatic monocular in case; and a military-pattern monocular in leather case (4)
by Ross London, No: 6901 dated 1915, with tapering leather-covered outer body-tube, lens-hood and eye-piece dust-slide, 33in. (83.8cm.) long, extended; a gun-sight telescope by Alexander Martin in case; a prismatic monocular in case; and a military-pattern monocular in leather case (4)