Beschreibung:

Brass Cuff-type Microscope, retailed by Dollond, London, c. 1761, and possibly made by John Cuff (1708-1772), the mahogany box foot with accessories including six objectives, an ivory double-screw top box containing springs, a brush, brass tweezers, and four ivory sliders, supports a composite brass side pillar with thumbscrew-adjusted fine focusing mechanism, single tube with threaded nosepiece for the objectives, quatrefoil stage signed "Dollond, London," with stage-mounted lens for top lighting, cone-shaped substage diaphragm, box-mounted concave mirror, on shaped brass base affixed to the box with screws and embellished with a scroll, all in a pyramidal mahogany box with drawer housing additional accessories including a Bonanni spring stage and additional eyepieces, ht. of box including handle 17 1/2 in. Literature: COLLECTING MICROSCOPES, Gerard L.E. Turner, pp. 52-7. According to Turner, it is possible that Dollond sold microscopes actually made by John Cuff. A copy of the relevant pages from this book accompanies the lot.