£600
Ø A 17½IN RADIUS VERNIER OCTANT, DUTCH, CIRCA 1755
the mahogany 'T' frame with arc sandwiched between brass plates, the front divided to 90º, brass index arm, vernier scale with central '0', arm stop, fore and aft pinhole sights, mirrors and two pad rests -- 20in. (51cm.) high overall; together with a 13½in. radius example in ebony signed Heather London (old losses and wear overall), IDN: MJLVS1NJ
(2)
Dutch: inset maker's plate missing, scales much worn, but just readable; index arm loose but secure, main pinhole sight bent, lacking interchangeable shades, missing one pad foot;
Heather: both pinhole sights bend, lacking mirrors (plates only), lacks shades, lacks pencil, no case.
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