signed Adrw. Ross, London, No.110, with rack and pinion and leaver and screw focusing, mechanical stage with plano-concave reflector, in mahogany case with several drawers of specimen slides (as listed in accompanying note book) and accessories including bench condenser, Ross 1, 1/6, 1/8 and 1/2in objectives, ocular, 18in (46cm) high
signed Adrw. Ross, London, No.110, with rack and pinion and leaver and screw focusing, mechanical stage with plano-concave reflector, in mahogany case with several drawers of specimen slides (as listed in accompanying note book) and accessories including bench condenser, Ross 1, 1/6, 1/8 and 1/2in objectives, ocular, 18in (46cm) high
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