- 3 Calculating Machines...
- Arithstyle, 1910...
- Curta "Type I" Calculator, 1948...
- "Antares" Cutaway Model...
- "The Brical – Money Calculating Machine", c. ...
- Tim Unitas, 1912...
- 3 Spokewheel Calculating Machines...
- American Adding Machine, 1913...
- 2 Adding Machines...
- "Feliks" and "Feliks M", 1935/1955...
- 3 Calculation Devices...
- Brunsviga Mod. 14 Twin Calculator, 1958...
- Original Odhner, c. 1905...
- "Kuli" Calculating Machine, 1909...
- T-I-M (Time Is Money) Mod. 1, 1909...
- "Hewlett Packard HP-97" Desktop Calculator, 1...
- Olympia CD-400 Desktop Calculator, 1970...
- 2 Calculating Games...
- "Consul – The Educated Monkey", 1916...
- 6 Calculating Toys...
- "Answer Game" Calculating Robot, c. 1963...
- Professor Fuller's Slide Rule Calculator Mod....
- "The Adder", 1868...
- "Curta Type II" (Black), 1948...
- "Machine d'Arithmétique" of 1652...