A LATE 18TH CENTURY AMERICAN SURVEYING COMPASS,

SIGNED JAMES HAIN JUN, PHILADELPHIA,

細節
A LATE 18TH CENTURY AMERICAN SURVEYING COMPASS,
signed James Hain Jun, Philadelphia,
the silvered dial with foliate decoration, finely modelled needle on jewelled pivet, the limb with two fixed sights, the compass with cover--14in. long