| Type name / number: | Adding and Listing machine, Continental 9S (hand driven) |
| Production / SN: | P65612 |
| Calculating principle: | Rocking Segment with full keyboard |
| Calculating functions: | Add and Subtract. The machine performs direct subtraction, but shows complements rather than true values when the balance goes negative. |
| Input accuracy: | 8 digits |
| Calculating accuracy: | 9 digits |
| Extra's: | |
| Designer: | John E. Greve (as well founder of the Astra-Werke) |
| Production year: | 1930 - 1950 |
| Case material: | Aluminium |
| Weight: | 9,5 Kg |
| External links: | |
| Previous owner: | Sebastian Wichert, Muehlhausen, Germany |
| Cosmetic imperfections: (I accuse no one) |
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| Date of receiving: | 2010 - june, e-bay |
| Machine story: | Machine was meant for dismantling and demo, but was to good for it. An other 1.50 euro machine is purchased for that. The machine is partly striped for exchange with the first 9S. Now for photo purposes used as demo of the S type. |
Content without guarantee! (UK); Inhalt Ohne Gewähr! (DL)