{"product_id":"1950s-weston-sangamo-s85-bakelite-photometer-in-its-original-leather-case","title":"1950s Weston Sangamo S85 Bakelite Photometer In Its Original Leather Case","description":"\u003ch1\u003e1950s Weston Sangamo S85 Bakelite Photometer In Its Original Leather Case\u003c\/h1\u003e\n\u003cp\u003eThis lovely little piece of vintage tech is a 1950s Weston Sangamo S85 Bakelite Photometer In Its Original Leather Case. It also comes with its original operating instructions!\u003c\/p\u003e\n\u003cp\u003eIt is in very cosmetic condition: with some superficial scuffs. Although the needle is moving in different lighting conditions, it does not appear to be operating properly, hence it is being sold as a collectible for display only.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eApproximate Size (WHD): \u003c\/strong\u003e\u003c\/span\u003e 5.2 x 8 x 3 cm\u003c\/p\u003e\n\u003cp\u003eIt would have been used by Lighting Engineers to measure the lighting source in different working environments e.g. office, classroom, factory floor e.t.c. It has a table on the back of the instrument, and in the operating booklet, giving a selected set of recommended illumination values for different types of work\/working environment.  \u003c\/p\u003e\n\u003cp\u003eIt has two ranges of sensitivity, and is calibrated in foot-candles (lumens per square feet). \u003c\/p\u003e\n\u003cp\u003e1 lux = 0.093 lumen\/ SQ FT )or 1 Ft.C\u003c\/p\u003e\n\u003cp\u003eYou press the switch on the top to move from the lower (x1) to higher (x5 measuring up to 125 foot candles) sensitivity range. \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003eA wonderful little scientific instrument. There is even one in the collection at the Science Museum!\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/tests-measures-meters\" target=\"_blank\"\u003evintage test\/measures\/meters.\u003c\/a\u003e\u003c\/p\u003e","brand":"Sangamo Weston","offers":[{"title":"Default Title","offer_id":42586758807809,"sku":"","price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/1950s_Weston_Sangamo_S85_Bakelite_Photometer_In_Its_Original_Leather_Case.jpg?v=1779450019","url":"https:\/\/mullardantiques.co.uk\/en-us\/products\/1950s-weston-sangamo-s85-bakelite-photometer-in-its-original-leather-case","provider":"Mullard Antiques and Collectibles","version":"1.0","type":"link"}