$237
Brass Box Setant by G. Whitbread, London, with silver scale and vernier adjusted by a knurled knob, maker's name and city engraved above scale, removable knob for adjustment of horizon mirror, telescope, shades, and screw-fit cover, dia. 2 7/8, ht. closed 1 1/4 in.
Auctioneer:
Skinner
Date:
2009-07-25