A Calculating Machine

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Taken from

Various: “The Leisure Hour” (1904)

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Out of copyright (called public domain in the USA), hence royalty-free stock image for all purposes usage credit requested
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Notes:

Showing the numbers (in black marks) struck on the register, and the keys struck to multiply 2253 by 84. The answer is shown on the register.” (p. 775)

This is a hand-operated calculator.

Keywords:

machinery

Dimensions:

130 x 73mm (5.1 x 2.9 inches)

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A Calculating Machine details

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