# Alvan Clark & Sons

> American maker of optics

**Wikidata**: [Q4737649](https://www.wikidata.org/wiki/Q4737649)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Alvan_Clark_&_Sons)  
**Source**: https://4ort.xyz/entity/alvan-clark-sons


## References

1. archINFORM
2. Virtual International Authority File
3. National Register Information System
4. [archINFORM](https://www.archinform.net/service/wd_aiarch.php)