A microscope by Stiassnie,

细节
A microscope by Stiassnie,
in lacquered and blackened brass with tapering curved limb and tripod base, coarse and micrometer fine focussing, four eyepieces, four objectives in quadruple nosepiece, mechanical stage, sub-stage condenser and plano-concave mirror, signed on the body-tube M. Stiassnie 204 Bould. Raspail Paris -- 12½in. (32cm.) high, late 19th century, in mahogany case