Pocket calculators

Click on each model for additional information
Addiator Duplex
Addiator Duplex
?
SN: D516791
Addometer
Addometer
?
Addiator Arithma
Addiator Arithma
?
Curta - Type 2
Curta - Type 2
1961
SN: 518300
Penol
Penol
?