拍品 78
78
A vernier octant ebony and brass by Spencer Browning & Rust, London with inlaid ivory scale divided on Ramsdens Engine calibrated 2° - 0° - 100° (old damages, pieces loose/missing) in stepped keystone case -- 14½in. (37cm.) in length

细节
A vernier octant ebony and brass by Spencer Browning & Rust, London with inlaid ivory scale divided on Ramsdens Engine calibrated 2° - 0° - 100° (old damages, pieces loose/missing) in stepped keystone case -- 14½in. (37cm.) in length
See illustration