Beschreibung:

circa 1885, No. 73, the object table with rotating radial, above x and y plateau for fine adjustment, reading scales beside knurled controls, Zeiss lens on the main vertical-cut prism case housing of polished and lacquered brass with ninety-degree position knob below, six-mask rotating dial to light source tube opposite the dry-plate camera tube funnel terminating with dark box chamber, three slides for the chamber including diffuser, lens and paper-box, horizontal monocular finely engraved with maker's signature, on circular black finished tripod base with brass point adjustable feet, with the original accessory case, present now with just the three dark box chamber slides, Zeiss lens, three oblong prism blocks, and a small glass square - 14in. (36cm) long, the case 10.3/4in. (27cm) wide