Title: Controlled-Key Comptometer Description: An advertisement by Felt & Tarrant for its Controlled-Key Comptometer. The ad promotes the calculating machines by stating that they safeguard against errors and allow for greater productivity: Chicago, Illinois ; Location: New York, New York, November 10, 1928 Keywords: businesses, technologies, inventions, calculators, ads, ad, advertising, advertisements, promo, promos, business. Orientation: Vertical Dimensions: 1575 x 3403 (5.36 MPixels) (2.16) Print Size: 13.3 x 28.8 cm; 5.3 x 11.3 inches File Size: 15.36 MB (16,106,626 Bytes) Resolution: 300 x 300 dpi Color Depth: 16.7 million (24 BitsPerPixel) Compression: None Image Number: 0000300357 Source: Jay Robert Nash Collection
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