287 W.WATSON & SONS LTD di Londra
Smalto nero e ottone laccato. Microscopio binoculare van Heurk-modello. N ° 42573, oculare binoculare, triplo revolver portaobiettivi, pignone e cremagliera e messa a fuoco micrometrica. tavolin meccanico circolare con condensatore, silvered-scale e specchio piano-concavo. Incliazione regolabile.
16 pollici (41cm) altezza, con tubo ottico monoculare e altri accessori.
Scatola trasporto e porta-accessori
287 W.WATSON & SONS LTD London
A black-enamelled and lacquered-brass. Van Heurk-pattern binocular microscope. No. 42573, with High Powered Binocular Eyepiece with dividing eyepieces, triple nosepiece, rack-and-pinion and micrometer focusing. circular mechanical stage with silvered-scales sub-stage condenser and plano-concave miror. trunnion mounted to raised tripod stand. 16in. (41cm) high, with monocular body-tube and other accessories.