The Hasbro Adding Machine, from the 1960s.
This is episode 6 of my video series about calculating devices.
Hasbro adding machine manual PDF: [ Ссылка ]
Chris Staecker webarea: [ Ссылка ]
![](https://i.ytimg.com/vi/xCarCDg395Y/mqdefault.jpg)
The Hasbro Adding Machine, from the 1960s.
This is episode 6 of my video series about calculating devices.
Hasbro adding machine manual PDF: [ Ссылка ]
Chris Staecker webarea: [ Ссылка ]