| Type name / number: | RA-20 |
| Production / SN: | 1.471-087-01465 |
| Calculating principle: | pendulum-wheel |
| Calculating functions: | Add, Subtract, Multiply, Divide |
| Input accuracy | 11 digits |
| Calculating accuracy: | 20 digits |
| Extra's: | |
| Designer: | |
| Production year: | 1963 - 1965 ? |
| Case material: | Steel / Aluminum |
| Weight: | 17,9 Kg |
| External links: | |
| Previous owner: | Rainer Rzepka (Antikma on eBay), 67722 Winnweiler-Hochstein, Rheinland-Pfalz, Germany |
| Cosmetic imperfections: (I accuse no one): |
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| Date of receiving: | 2014-04-03 |
| Machine story: |
Content without guarantee! (UK); Inhalt Ohne Gewähr! (DL)