細節
A brass-cased dry-card compass,
with jewelled pivot, the printed card inscribed in ink BRYSON EDINBURGH, the compass bowl mounted on a gimbal with drum case -- 3¼in. (8.2cm.) dia.
with jewelled pivot, the printed card inscribed in ink BRYSON EDINBURGH, the compass bowl mounted on a gimbal with drum case -- 3¼in. (8.2cm.) dia.