Series 37
Series 37 stands for:
- Tender passenger locomotives with a 1'C wheel arrangement of the Deutsche Reichsbahn:
- Class 37.0-1: Prussian P 6
- Series 37.1-2: PKP series Oi1
- Series 37.2: LBE G 6
- Series 37.3: ČSD series 344.0
- Series 37.4: PKP series Oi101
- Class 37.10: former class 24 based on the IT series scheme of the Deutsche Reichsbahn from 1970
