Details
A 19th-century brass surveying level,
signed on the telescope Elliott Bros, London No. 15, with rack and pinion focusing cross-wire adjusters, lens dust-cap and bubble level, located on the limb with two clamps and adjustable for elevation by tangent screw, on four-screw tripod attachment in fitted mahogany case 16in. (40.6cm.) wide
See illustration
signed on the telescope Elliott Bros, London No. 15, with rack and pinion focusing cross-wire adjusters, lens dust-cap and bubble level, located on the limb with two clamps and adjustable for elevation by tangent screw, on four-screw tripod attachment in fitted mahogany case 16in. (40.6cm.) wide
See illustration