# Otto Sammer
**Wikidata**: [Q94895365](https://www.wikidata.org/wiki/Q94895365)  
**Source**: https://4ort.xyz/entity/otto-sammer


## References

1. askArt
2. Catalog of the German National Library
3. [Source](https://kalliope-verbund.info/DE-611-BF-118546)