細節
A polished brass compound monocular microscope,
by W. Watson & Sons Ltd., research model, with rack and pinion focusing, micrometer fine adjustment, triple nose-piece, mechanical stage, sub-stage condenser with iris diaphragm and plano-concave mirror, on tripod stand -- 12in. ( cm.) high; a mahogany microscope accessory case -- 9in. ( cm.) wide; and an 8in. dia. magnifying lens, with swivel mounting, on stand, signed John Browning London -- 15in. ( cm.) high (3)
by W. Watson & Sons Ltd., research model, with rack and pinion focusing, micrometer fine adjustment, triple nose-piece, mechanical stage, sub-stage condenser with iris diaphragm and plano-concave mirror, on tripod stand -- 12in. ( cm.) high; a mahogany microscope accessory case -- 9in. ( cm.) wide; and an 8in. dia. magnifying lens, with swivel mounting, on stand, signed John Browning London -- 15in. ( cm.) high (3)