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Title: The Astounding Curta Mechanical Calculator View count: 158237 Rating: 4.908425 (273 ratings) Description: Witness the jaw-dropping ingenuity of this fascinating hand-held mechanical calculating machine. Tags: curta, mechanical, calculator, curt, herzstark, contina, ag, mauren, adding, machine, pocket, miniature, rechenmaschine, Author: rregister |
