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COBURN SUPREMACY 71MM DIAM. SEMI-FINISHED HARD RESIN LENSES
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Item No: L3309
Price: $4.50
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| Military surplus plastic lens blanks, manufactured by Coburn Optical Industries, Inc. of Muskogee OK. Made from CR39 resin, these Accomodator model concave lenses are impact-resistant (not shatterproof or unbreakable), are 71mm diameter and feature a 22mm diameter low-segment slight magnification zone (shown in the listing picture). Ground 8mm thick edge; approximately 15mm depth. Unused stock, in the original wrapping and boxes. Price is for a set of 2. |
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