Hassler's reflecting circle, 11-inch diameter with counterpoise stand, by Troughton, London in case, no key [RAS No.43, Sheepshanks No.17]. Presented to the Royal Astronomical Society in 1857 by Miss Anne Sheepshanks sister of Rev. Richard Sheepshanks. Hassler type reflecting circle with case. 1790-1826
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. Vertical repeating circle with stand of 8-inch diameter 1824-1855
