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Details
A polished brass graphometer,
unsigned, the compass with edge-bar needle and clamp and 0-360° circumference scale (glass cracked), mounted within the half-circle graduated in two quadrants in each direction, with a pair of fixed sights and a second pair on the alidade, mounted via a ball and socket joint (one retaining screw missing) with micrometer adjustment, to a short brass column and turned and ebonised plinth base -- 10.9cm. (4¼in.) radius
See Illustration
unsigned, the compass with edge-bar needle and clamp and 0-360° circumference scale (glass cracked), mounted within the half-circle graduated in two quadrants in each direction, with a pair of fixed sights and a second pair on the alidade, mounted via a ball and socket joint (one retaining screw missing) with micrometer adjustment, to a short brass column and turned and ebonised plinth base -- 10.9cm. (4¼in.) radius
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
This lot is subject to Collection and Storage charges