# Engaged cassetta frame on a polyptych panel

> painting by Siena

**Wikidata**: [Q20183589](https://www.wikidata.org/wiki/Q20183589)  
**Source**: https://4ort.xyz/entity/engaged-cassetta-frame-on-a-polyptych-panel


## References

1. Metropolitan Museum of Art
2. [Source](http://www.metmuseum.org/art/collection/search#!/search?showOnly=highlights)