
- Impact resistant handrails
- In-plane assembled windows
- Detailed car bottom with manyextra mounted details
- Extra mounted ventilator
- Filigree steps
- NEM-standard short-coupling

The largest order of standard secondary line passenger coaches ever placed was for the fourth-class Di 24 coach. Orenstein and Koppel delivered a total of 40 coaches between 1926 and 1927. When the fourth class was abolished in 1928, they were used as third class coaches after only slight modifications to the interior. The third class coaches with the old fourth class interiors were allocated to service class Cid.
| Tender Locomotive BR 75 DB Item no. 40016 | Electric Locomotive E 77 DRG Item no. 43032 | |||||
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| Tender Locomotive BR 74.0-3 DRG Item no. 40350 | Tender Locomotive BR 75 DRG Item no. 40024 | |||||
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| Tender Locomotive BR 94.1 DRG Item no. 40308 | ||||||
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