拍品 137
137
A mid-19th-Century 10½in. radius vernier ebony and ivory octant by Spencer Browning & Co.
No VAT will be charged on the hammer price, but VA… 顯示更多
A mid-19th-Century 10½in. radius vernier ebony and ivory octant by Spencer Browning & Co.

細節
A mid-19th-Century 10½in. radius vernier ebony and ivory octant by Spencer Browning & Co.
with scale with 'SBR' Ramsden mark, divided 2½°- 0°- 105°, vernier with clamp and fine screw adjustment, signed on the cross bar Spencer.Browning & Co.London, double pinhole sight, five shades, two mirrors and brass pin feet (old wear), contained within a keystone case (later) -- 14in. (35.5cm.) long
See illustration
注意事項
No VAT will be charged on the hammer price, but VAT at 17.5% will be added to the buyer's premium which is invoiced on a VAT inclusive basis.