# Sigmund Ritter von Merz

> German optical instrument maker (1824–1908)

**Wikidata**: [Q55844875](https://www.wikidata.org/wiki/Q55844875)  
**Source**: https://4ort.xyz/entity/sigmund-ritter-von-merz


## References

1. Integrated Authority File
2. Deutsche Biographie
3. [Source](https://kalliope-verbund.info/DE-611-BF-110361)
4. [Source](https://kalliope-verbund.info/DE-611-BF-9822)