Summira 7 - Calculator - 1950-1960

Old Summira 7 mechanical calculator, serial number 23620, dating probably from the 1950s–1960s. Desktop calculator operated entirely manually, equipped with seven numerical sliders, a top mechanical counter and a side crank to perform the operations. Robust metal case with a hammered green finish, typical of office equipment of that era. The piece shows a beautiful antique patina with a few signs of wear and use consistent with its age. Not tested. A fine collectible representing the history of mechanical calculating machines. Highly sought after in the worlds of industrial design, scientific curiosities, old medical technology, laboratory optics, steampunk, and rare measuring instruments. Ideal for collectors, industrial loft decor, cabinet of curiosities, scientific display case (theodolite, microscope, sextant, compass).

Estimation:€130

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