{"product_id":"shimadzu-kalnew-gem-refractometer-1960s-70s","title":"Shimadzu Kalnew Gem Refractometer 1960s~70s","description":"\u003cp\u003eShimadzu Kalnew Gem Refractometer\u003c\/p\u003e\n\u003cp\u003eJapan, c. 1960s–1970s (estimated)\u003c\/p\u003e\n\u003cp\u003eShimadzu Kalnew ≈ “Shimadzu (\u003cspan\u003e島津製作所)\u003c\/span\u003e New Calibration (Optical) Series\".  Manufactured by Shimadzu Corporation — an early leader in optical and analytical instrumentation — the Kalnew series was designed to provide reliable refractive-index measurements for gemologists, appraisers, and educational institutions.\u003c\/p\u003e\n\u003cp\u003eBuilt in a rigid, precision-machined housing, the instrument features a high-quality optical glass hemicylinder, an internal illumination system, and a fixed-scale readout visible through the eyepiece. Its sturdy construction and stable optical alignment made it a trusted tool at a time when gem testing laboratories in Japan and abroad were expanding rapidly.\u003c\/p\u003e\n\u003cp\u003eThis object belongs to the museum archives. No unit is available for purchase at this time.\u003c\/p\u003e","brand":"Gems.studio","offers":[{"title":"Default Title","offer_id":51322260062528,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/0397\/2672\/files\/Shimadzu_2.gif?v=1767234487","url":"https:\/\/gems.studio\/products\/shimadzu-kalnew-gem-refractometer-1960s-70s","provider":"Gems.studio","version":"1.0","type":"link"}