# G.C.M. Kolff
**Wikidata**: [Q118430423](https://www.wikidata.org/wiki/Q118430423)  
**Source**: https://4ort.xyz/entity/g-c-m-kolff


## References

1. [Source](https://www.kolff.nl/gcbb/#xviiib)
2. [Source](https://hdl.handle.net/21.12123/213824)
3. [Source](https://hdl.handle.net/21.12123/213827)
4. collection website Museon-Omniversum