# Hendrik Olland jr.

> Dutch scientific instrument maker (1851–1931)

**Wikidata**: [Q65960810](https://www.wikidata.org/wiki/Q65960810)  
**Source**: https://4ort.xyz/entity/hendrik-olland-jr-


## References

1. [Source](https://www.openarch.nl/hua:A5E9654A-C5A3-C413-E053-4701000A92C2)
2. [Source](https://www.openarch.nl/hua:20F97C88-EBD4-474E-A922-8835196B60F2)
3. [Source](http://www.dwc.knaw.nl/biografie/scientific-instrument-makers/?pagetype=authorDetail&aId=PE00012079)