Copyright © 2020 Jason Clarke Antiques.
Early Victorian Aneroid Barometer on Stand by Troughton & Simms & Engraved to George Sibley
East India Company Three Draw Telescope by Thomas Jones of Charing Cross, London
George III Cased Double Framed Sextant by Robert Brettell Bate of Poultry, London
George III Period Mountain Stick Barometer by Edward Troughton, London
Victorian Borda Type Reflecting Circle by Thomas Wegener of Berlin
William IV Morocce Leather Cased Travelling Thermometer by Troughton & Simms London