Clock, Watch, Jewelry, Nautical Instruments & Antiques Auction
Clocks & Clockmaker's Shop featuring rare French Industrial Series
Saturday, May 19, 2018 at 10:30am: LOTS 1 - 598
Preview: Saturday, May 19 at 8am to 10:15am. Limited Watch Preview Extended Until 12pm.
Precision Timepieces, Important Watches, Nautical Instruments, Marine Clocks, Jewelry & Antiques
Sunday, May 20, 2018 at 10am: LOTS 599 - 1192
Preview: Saturday, May 19 at 8am to 10:15am & Sunday, May 20 at 8am to 9:45am
The Manchester Downtown Hotel (formerly the Radisson Hotel), Manchester, NH
Edward Troughton, London, double or pillar frame brass sextant, 10 inch radius, twin brass frames engraved "No. 93" connected by pillars, large graduated arc measuring 13.75 inches across reading "Troughton- London" and divided from -5 to 155, knurled tangent screw for vernier adjustment, four index and horizon mirror shades, three telescopes, walnut handle, all in a keystone-shaped dovetailed wooden box with later retailer label.
CONDITION: Heavy verdigris on brass. The index magnifier assembly is missing. The horizon mirror and mount look like later replacements. Index mirror and sun shades are in good condition Top of wooden case has a crack on one corner. Though the instrument has three telescopes the case appears to have a spot for a fourth. Edward Troughton (1753-1835) was a British instrument maker who invented the double frame sextant in 1788. The signature on the arc is hard to read but compares favorably with other examples of instruments signed by Troughton. The low serial number and size of this instrument suggests that it is an early version of this design. Dimensions are for the closed wooden box.
ESTIMATE: $800 - $1200
PRICE SOLD: $425
DIMENSIONS: 5.25in x 15.5in x 13.25in