# Östhammar upper light
**Wikidata**: [Q111513128](https://www.wikidata.org/wiki/Q111513128)  
**Source**: https://4ort.xyz/entity/-sthammar-upper-light


## References

1. Swedish list of lights. 1978
2. [notice to mariners. 2020](https://ufs.sjofartsverket.se/pdf/2020/822SV.pdf)