Offered for sale is an early and huge microscope made by Andrew Ross with serial number #398 made around 1849 (See Turner, “The Great Age of the Microscope”, items 149-150.) It is enormous, standing 44 cm tall when closed. Focus is rack and pinion with two knobs on the side of the optical tube. The mechanical stage allows micrometic movements as well as rotation . A large double side mirror is fixed beneath the stage. The microscope comes in huge original case with three lenses, three eyepieces, tweezers, a RMS thread adapter, a condensor with diaphargm iris and an empty brass can. Case is in good condition with lock and key, although lock doesn’t work.
This is the largest model made by Ross and has the design introduced in 1845 that became very popular and characteristic of their microscopes. One of the lenses is a rare Ross one, holding an oil inmersion lens that could be screwed on top. Unfortunately, thread is damaged and it can’t be screwed. The microscope is in very good condition, with everything working as they should. Case dimensions are 54x29x28 cm and all together weights 14 kg.
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Shipping to Europe 50€ and worlwide 95€