{"product_id":"vintage-underwood-sundstrand-manual-10-key-adding-machine-crank-calculator","title":"Vintage Underwood Sundstrand Manual 10-Key Adding Machine Crank Calculator","description":"Underwood Sundstrand manual adding machine by Underwood Corporation, U.S.A. Trusted by accountants, banks, retailers, and offices before electronic calculators, its design helped popularize today's standard 10-key keypad on calculators, cash registers, and computer keyboards.\u003cbr\u003e\u003cbr\u003eBlack with cream keys: hand crank, paper tape printer, place indicator window, original Total, Non Add, Repeat, Correction keys. Rear marks identify Underwood Sundstrand\/U.S.A.; original fitted protective cover included.\u003cbr\u003e\u003cbr\u003eCollectible for durability, precision engineering, historical importance, industrial design, and nostalgic appeal. For offices, libraries, accounting firms, vintage technology, antique office\/business machine collections, or mid-century industrial décor. Recalls mechanical ingenuity behind modern computing\/accounting. Review photos for cosmetic condition\/appearance. Functional testing beyond basic inspection has not been performed.\u003cbr\u003e\u003cbr\u003eDiscovered by Treasures Of Bako – Have We Got A Gem For You?!","brand":"Treasures of Bako","offers":[{"title":"Black","offer_id":68087477993621,"sku":null,"price":62.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0501\/4585\/3589\/files\/p1_9c02697b-c73b-46b9-9818-d4821a93942d.jpg?v=1793159761","url":"https:\/\/treasuresofbako.com\/es\/products\/vintage-underwood-sundstrand-manual-10-key-adding-machine-crank-calculator","provider":"Treasures of Bako","version":"1.0","type":"link"}