# open letter

> type of letter

**Wikidata**: [Q646754](https://www.wikidata.org/wiki/Q646754)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Open_letter)  
**Source**: https://4ort.xyz/entity/open-letter


## References

1. Freebase Data Dumps. 2013
2. National Library of Israel