.jpg?w=1)
Details
A rare nickel-brass surveying sextant,
signed on the index arm Coutureau Inv.r, and engraved on the underside of the prism bridge 135, the frame with prism bridge and mirrors, the curved index arm with silvered vernier scale set to read against the silvered arc, engraved 0°-150°, with spring-loaded tangent-screw fine adjustment and clamp, the solid frame with engine-turned decoration, inset with a simple compass, the edge-bar needle with jewelled cap and clamp screw located on the underside, the index arm radius -- 2½in. (6.3cm.); with a separate nickel-brass prism cage of similar design, stamped on one side A COUTEREAU INVR 2085 and on the top VISEE with an arrow, in a green plush-lined shaped leather carrying case, with separate leather strap, the case
See Illustration
signed on the index arm Coutureau Inv.r, and engraved on the underside of the prism bridge 135, the frame with prism bridge and mirrors, the curved index arm with silvered vernier scale set to read against the silvered arc, engraved 0°-150°, with spring-loaded tangent-screw fine adjustment and clamp, the solid frame with engine-turned decoration, inset with a simple compass, the edge-bar needle with jewelled cap and clamp screw located on the underside, the index arm radius -- 2½in. (6.3cm.); with a separate nickel-brass prism cage of similar design, stamped on one side A COUTEREAU INVR 2085 and on the top VISEE with an arrow, in a green plush-lined shaped leather carrying case, with separate leather strap, the case
See Illustration
Special notice
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.