- 9 Calculating Machines...
- Automatic Bookkeeping Register, Serial No. 2,...
- 3 Calculating Machines from the German Democr...
- Curta Type I Calculator, 1958...
- Curta Type I Calculator, 1970...
- 6 Calculating Machines...
- 8 Mechanical Calculating and Adding Machines...
- 6 Spokewheel Calculating Machines...
- Saxonia Universal Calculating Machine, c. 192...
- 6 Spokewheel Calculating Machines...
- "The Millionaire" Calculating Machine, 1918...
- 8 Calculating Tools...
- Ethel L Law Patent "Numeric Demonstrator" Mod...
- Curta Type I Calculator, 1954...
- Curta Type II (Grey), 1971...