| Type name / number: | Euklid 21 motor driven |
| Production / SN: | 45329 |
| Calculating principle: | Proportional Lever |
| Calculating functions: | Add, Subtract, Multiply, Divide |
| Input accuracy | 9 digits |
| Calculating accuracy: | 12 digits, 6 for the revolution counter |
| Extra's: | Auto divide (see the video: The machine at work. Menu to the left: Technologies / Proportional Lever pg3) |
| Designer: | C. Hamann |
| Production year: | from 1931 on |
| Case material: | Aluminum and steel |
| Weight: | 14 kg |
| External links: | http://www.rechnerlexikon.de/artikel/Mercedes_Euklid_21 http://www.rechnerlexikon.de/artikel/Mercedes_Euklid_Geschichte |
| Previous owner: | Günther Fehrholz, Wesel, NRW, Germany |
| Cosmetic imperfections: (I accuse no one): |
Minor harming of usage. Was internaly very clean, at arrival! |
| Date of receiving: | 2010 - 5 oct, ebay, picked up in Wesel |
| Machine story: | The machine was working perfect on arrival. Calculating check oké. Auto divide is oké with 8 digits. |
Content without guarantee! (UK); Inhalt Ohne Gewähr! (DL)