| Perkeo | |||||
| Clemens Mueller A.G., Dresden, Germany | |||||
| Models and s/n | Y | M | D | Remarks | Ref. |
| Portable | |||||
| Developed from the "Albus" from Carl Engler GmbH, Wien, Austria (1909), a three key-row aluminium machine | 4 | ||||
| The machine was sold in France with the name "Galiette" | 4 | ||||
| Model 1 | |||||
| 6000-6820 | 1912-1914 | 7,13 | |||
| Model 2 | |||||
| up to 8000 | 1914-1920 | 7,13 | |||
| 20000-30000 | 1920-1924 | Missing serial numbers could have been used for the Urania, see there | 7,13 | ||
| 60000-62139 | 1924 | 7,13 | |||
| Model 3 | |||||
| 62140-70000 | 1924-1933 | 7,13 |