# Crystal Gradation

> painting by Paul Klee

**Wikidata**: [Q111148828](https://www.wikidata.org/wiki/Q111148828)  
**Source**: https://4ort.xyz/entity/crystal-gradation


## References

1. Source
2. [Source](https://sammlungonline.kunstmuseumbasel.ch/eMP/eMuseumPlus?service=ExternalInterface&module=collection&objectId=12079)