Brass double frame (pillar frame) bridge type, wooden handle. Tangent screw on the front of the index arm; the clamping screw is on the back. Four shades (three red, one green); three horizon shades (two red, one green). Index glass adjustment by screw; horizon glass by capstan screw and capped screw. Magnifier traveling on worm screw. Threaded telescope bracket with rising piece by milled knob. Telescope (126 mm) incomplete; telescope (131 mm) incomplete. Sight tube (89 mm), various unidentified parts are missing. Fitted mahogany box restored in 1990 (plywood lid top). Two latch hooks plus lock.
Material
Singed on the limb: Ramsden London
Marked on the back of the frame near the pivot: 1336
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