A few examples of appraisal values for
BRAHES

• AZIMUTH AND STEERING COMPASS BY
  AZIMUTH AND STEERING COMPASS BY GEORGE ADAMS BRITAIN, CIRCA 1770 COMPASS CARD DIAMETER 6.5". BOX HEIGHT 9.5". WIDTH 12". DEPTH 12".AZIMUTH AND STEERING COMPASS BY GEORGE ADAMS, Britain, Circa 1770, Signed, with the original label and on the underside of the compass card "Geo Adams". Printed label on the underside of the lid marked "I hereby certify that I have examined this Compass and that it appears to be rightly Constructed" and signed "Geo. Adams". A second label states "Azimuth and Steering Compass Invented By Gowan Knight F.R.S. Made by George Adams, Mathematical Instrument Maker to His Majesty at Tycho Brahes Head in Fleet Street, London. N.B. Drawing Instruments, Telescopes and Hadley's Quadrants of the best Construction". Printed dry card compass rose, marked "Made by G. Adams Fleet Strt. London Instt. Makr. to His Majesty", mounted within a scribed metal degree ring, suspended in a brass rotating drum case with gimbal mounts and brass sights, within the original oak box. "East" and "North" compass points are decorated. Dimensions: Compass card diameter 6.5". Box height 9.5". Width 12". Depth 12". Provenance: R. Frank Collection of Scientific Instruments, until 1986.Sotheby's, London, The R. Frank Collection of Scientific Instruments, March 1986.Acquired at the above sale by Richard Kelton.The Kelton Collection of Marine Art & Artifacts.