Vintage Office Machine Appraisal

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Vintage Lightning Adding Machine

This is a mid-century mechanical adding machine produced by the Lightning Adding Machine Co. Inc. of Los Angeles, California. The device features a black, likely Bakelite or early plastic housing with a rectangular, low-profile design. The front face exhibits seven rotating numbered dials used for calculations, each displaying digits 0 through 9 arranged in a circular configuration. The dial faces show a mix of colors, specifically identifying cent/dollar columns through color-coding (reddish-brown and white). Maker's marks are clearly visible on the right side of the faceplate, stating the company name and location. The unit appears to be a stylus-operated model, missing its original metal stylus which would be used to rotate the internal gears via the small holes in the dials. The piece shows signs of age-related wear, including minor surface scuffs and dust accumulation in the dial tracks. The font style is typical of the 1940s to 1950s era. The compact portable nature of this specific model made it a popular desk accessory for small businesses and personal accounting before the advent of electronic calculators, representing a transition in mechanical office technology.

Estimated Value

$45.00 - $65.00

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