# Pistor & Martins

> Carl Philipp Heinrich Pistor (1778-1845) went into partnership with his son-in-law, Carl Otto Albrecht Martins (1816-1871)

**Wikidata**: [Q133269436](https://www.wikidata.org/wiki/Q133269436)  
**Source**: https://4ort.xyz/entity/pistor-martins


## References

1. [1850](https://n2t.net/ark:/33862/collect/507234)
2. [Source](https://americanhistory.si.edu/collections/object/nmah_1058598)
3. [Source](https://collectionguides.universiteitleiden.nl/repositories/2/archival_objects/70706)
4. [Source](https://collection.sciencemuseumgroup.org.uk/objects/co61107/brass-scale-and-protractor-by-pistor-and-martins)
5. [Source](https://heritage.tudelft.nl/nl/objects/bd03c582-8c05-4f50-913c-da13e38a61da)