# Coso artifact

> spark plug supposedly encased in a 500,000-year-old geode

**Wikidata**: [Q2517695](https://www.wikidata.org/wiki/Q2517695)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Coso_artifact)  
**Source**: https://4ort.xyz/entity/coso-artifact


## References

1. Freebase Data Dumps. 2013