Parts of the text is extracted from the John Wolff web site.
Content without guarantee! (UK); Inhalt Ohne Gewähr! (DL)
Type name / number: | Contex Adding Machine X-30 (electro motor driven) (please see for the series the text at the X-10) |
Production / SN: | 473 126 695 |
Calculating principle: | Rocking Segment |
Calculating functions: | Add, Subtract , automatic multiply and semi automatic divide |
Input accuracy | 10 digits |
Calculating accuracy: | 11 digits |
Extra's: | Automatic multiplication: |
Designer: | |
Production year: | from 1965 onwards. 14-08-73 is scratched in the bottom plate |
Case material: | Polyurethane |
Weight: | 3,2Kg |
External links: | |
Previous owner: | Mr. N. Baaijens, Lochem, The Netherlands |
Cosmetic imperfections: (I accuse no one) |
Harddly none |
Date of receiving: | 2012-10-08 |
Machine story: | 2012-10-11 Fully functional on arrival. Cleaned and photo's made. |