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A huge thank you to all who donated in 2025; 2026 Q1 Web hosting 0 / $400; planning a move to much cheaper hosting this quarter.
![[Picture: A Calculating Machine]](https://www.fromoldbooks.org/Various-LeisureHour-1904/pages/0775-A-Calculating-Machine/0775-A-Calculating-Machine-q75-350x200.jpg "[Picture: A Calculating Machine]")
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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.
