# Hans Lehmann
**Wikidata**: [Q94788401](https://www.wikidata.org/wiki/Q94788401)  
**Source**: https://4ort.xyz/entity/hans-lehmann-q94788401


## References

1. Deutsche Biographie
2. Czech National Authority Database
3. [Source](https://www.deutsche-biographie.de/sfz49793.html)
4. Catalog of the German National Library
5. [Source](https://www.mikeeckman.com/wp-content/uploads/2019/02/ZeissAutumn2001.pdf)
6. [Source](http://www.mflenses.com/carl-zeiss-history.html)
7. NUKAT