# Main Key Hereditary Adit

> cultural heritage monument in Zabrze, Poland

**Wikidata**: [Q11708267](https://www.wikidata.org/wiki/Q11708267)  
**Source**: https://4ort.xyz/entity/main-key-hereditary-adit


## References

1. [Source](https://nid.pl/pl/Informacje_ogolne/Zabytki_w_Polsce/rejestr-zabytkow/zestawienia-zabytkow-nieruchomych/stan%20na%2030.09.2020/SLS-rej.pdf)
2. [Source](http://tools.wmflabs.org/heritage/api/api.php?action=search&srcountry=pl&srid=765093&format=html)
3. [Source](http://tools.wmflabs.org/heritage/api/api.php?action=search&srcountry=pl&srid=765092&format=html)
4. [Source](http://tools.wmflabs.org/heritage/api/api.php?action=search&srcountry=pl&srid=718615&format=html)
5. Narodowy Instytut Dziedzictwa database