'Sumlock' adding / calculating machine no. 912/S/3475
"Sumlock" adding/calculating machine no.912/S/3475
- Object Number:
- 1950-9/1
- type:
- calculating machine
- Image ©
- The Board of Trustees of the Science Museum
"Sumlock" adding/calculating machine no.912/S/3475
"Sumlock" adding/calculating machine no.912/S/3475
Soft cover for "Sumlock" adding/calculating machine no.912/S/3475