I think the manufacturer was Bessler and they were called optical configulators which also used Silver when it was $2 an ounce. You might be able to find one in Kodaks museum.
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Kevin Goto
2000 740i-Annalisa (sold 2018) 2008 335i-Weebl. Weebl may wobble but has DTC 2012 X5d in Sparkling Bronze ( The Ultimate Cat Carrying Machine)-RIP BMW buyback 2019:2017 A3 , 2018 Audi SQ5
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