# B31 tram trailer
**Wikidata**: [Q105615552](https://www.wikidata.org/wiki/Q105615552)  
**Source**: https://4ort.xyz/entity/b31-tram-trailer


## References

1. [Source](https://www.sparvagssallskapet.se/vagnhallen/typ.php?typ_id=281)
2. [Source](https://www.sparvagssallskapet.se/vagnhallen/vagn.php?vagn_id=9)