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Rare Colex ESR 50 LED Calculator In Original Box With Case, Book, & Cord. Works. $28.51 USD Sold on: 2017-Apr-13 Marketplace: eBay ![]() 5 Treasure 0 Trash ![]() 100%Cool find. Colex vintage pocket size electronic calculator. Model ESR 50. Great working condition, no led lights burnt out. Comes in original box, soft case, power cord, and a booklet. Takes 4 AA batt... ![]() More Relevance Historical Items
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