| Title | Zvesti tovariš |
| Alternate title | |
| Subtitle | opereta v dveh dejanjih, vglasbil Emerich Kalman, režiser Pavel Rasberger |
| Author | |
| Corporate author | Narodno gledališče (Maribor) |
| Year of publication | 1923 |
| Place of publication | Maribor |
| Publisher | Narodno gledališče |
| Source | |
| Signature | 66-605-998 |