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Vertical repeating circle with stand of 8-inch di
Vertical repeating circle with stand of 8-inch diameter, with diagonal telescope and case (no key), by Troughton and Simms [RAS No. 39, Sheepshank No.13]. Presented to the Royal Astronomical Society in 1857 by Miss Anne Sheepshanks sister of the Rev. Richard Sheepshanks.
18 inch repeating circle, by Troughton, engraved F
18 inch repeating circle, by Troughton, engraved F5TO, 3 eyepieces 3 dark glasses, 1 plumb bob, 4 brass clips, 2 brass labels with chains, instrument is exhibited on stand with 3 levelling screws, circles are divided into twelths of a degree and read to 5" arc by vernier