$246
Three 19th Century Brass Instruments, London, an 8 3/4-in. protractor with scale from 0-360, pointer or marking arm engraved Barry London , with a central glass aperture with etched crosshairs, in a fitted mahogany case; a 10 1/2-in. brass and boxwood rolling parallel rule marked W.H. Harling 47 Finsbury Pavement London and P. Barlow , in a fitted mahogany case with chart/scale readings; and an admiralty station pointer engraved Troughton & Simms London , in a fitted case with partial label reading On His Majesty's Service and with British ordnance broad arrow marking.

Auctioneer:
Skinner
Date:
2015-04-21