# first day of issue

> postmark on a cover, postal card or stamped envelope franked on the first day the issue is authorized for use

**Wikidata**: [Q825187](https://www.wikidata.org/wiki/Q825187)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/First_day_of_issue)  
**Source**: https://4ort.xyz/entity/first-day-of-issue


## References

1. Freebase Data Dumps. 2013