# Official Letter from Usin School
**Wikidata**: [Q122465982](https://www.wikidata.org/wiki/Q122465982)  
**Source**: https://4ort.xyz/entity/official-letter-from-usin-school


## References

1. [Source](http://www.gukchae-archive.org/gp/item/GIT000074)
2. National Debt Redemption Movement Digital Archive