- "Adix", 1903...
- "Comptometer Mod. 1, 1887...
- "Kuli" Calculating Machine, 1909...
- "Curta Type I", 1948...
- Brunsviga Mod. 14 Twin Calculator (D13-R-1), ...
- "Stephenson Adder", 1910...
- 3 Calculating Machines...
- Thales Model A Calculating Machine, c. 1915...
- Professor Fuller's Slide Rule Calculator, c. ...
- Olympia CD-400 Desktop Calculator, 1970...
- Walther ETR-1, 1969...
- 2 Pocket Adding Machines...
- Gem Adding Machine ("The Aristocrat of Adding...
- Unusual Cutaway Model of a Calculator Mechani...
- "Casio CMD-40", c. 1994...
- "The Brical – Money Calculating Machine", c. ...
- 2 Pocket Watch Calculators...
- Gordon's Addometer, c. 1875...
- "Adix", 1903...
- "Thomas' Arithmomètre", c. 1870...