WEIGHTS, SCALES, & SCIENTIFIC INSTRUMENTS

England, c. 1850. Boxwood ruler for determining scale on maps. This 6" x 2" surface is heavily inscribed with three different scales of m...

England, c. 1875, a silver three inch ruler with a sliding marker which is decorated by a rosette.    $75

France, c. 1790's, a fine folding brass T-square sector made by Quillet of Paris. The piece is inscribed "Demi Pied de Roi". Rare and...

France, c. 1790's, a fine folding brass equal part sector made by Quillet of Paris. Folded length 7". A beautiful instrument. Cp. Hambly, ...

United States, c. 1880, a fine wooden stereoscope with brass and ivory fittings. Expensive features like a felt bottom, decorated brass hasps, and gl

Indo-Persian Zodiacal Astrolabe, unsigned in ferrous metal; the 19 cm. Diameter mater graduated around the edge and with various decoratively engrave

Persian, late 19th century brass astrolabe, the instrument is complete with four marked plates, with the highly decorated outer rete. The signs of th

Persian, late 19th century brass astrolabe, the instrument is complete with four poorly marked plates, with a decorated outer rete. The signs of the

Canada, c. 1927, a brass ship's compass dial with moveable dials. This fine piece is marked: CANADIAN MARCONI COMPANY on top of dial handle. Th...

United States, c. 1920, a brass cylinder-shaped pump action fog horn with an iron horn which can be manually pointed up or down. The cast iron base f