18 inch repeating circle, by Troughton, engraved F

Made:
1790-1826 in London
maker:
Edward Troughton

18 inch repeating circle, by Troughton, engraved F5TO, 3 eyepieces 3 dark glasses, 1 plumb bob, 4 brass clips, 2 brass labels with chains, instrument is exhibited on stand with 3 levelling screws, circles are divided into twelths of a degree and read to 5" arc by vernier

Details

Category:
Astronomy
Object Number:
1909-206
type:
repeating circles
credit:
British Admiralty