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File:Vintage Sharp Elsi Mate Pocket Electronic Calculator, Model EL-304, LCD Display, Made In Japan, Year Introduced - 1980, Year Discontinued - 1981 (16388607237).jpg - Wikimedia Commons
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File:Vintage Sharp Electronic Pocket Elsi Mate Calculator, Model EL-500, Green Fluorescent, Made In Japan (14181747381).jpg - Wikimedia Commons
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1970's pocket calculator. Simple arithmetic machine, handheld device. Sharp ELSI MATE EL-8031. The word LOSSES spelt out on the display Stock Photo - Alamy
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File:Vintage Sharp Elsi Mate Model EL-8118 Pocket LED Calculator, Made in Japan, Circa 1976 (9304416346).jpg - Wikimedia Commons
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