# An Oak Tree

> 1973 conceptual work of art by Michael Craig-Martin consisting of a glass of water on a glass shelf on metal brackets 253 cm above the ground and a text mounted on the wall asserting that it is an oak tree

**Wikidata**: [Q4750167](https://www.wikidata.org/wiki/Q4750167)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/An_Oak_Tree)  
**Source**: https://4ort.xyz/entity/an-oak-tree