Airmail - The 11th World Youth and Students' Festival, Havana 1978
現在展示： 古巴 - （通用）郵票 - 1978 - Airmail - The 11th World Youth and Students' Festival, Havana - 1 郵票.
現在展示： 古巴 - （通用）郵票 - 1978 - Airmail - The 11th World Youth and Students' Festival, Havana - 1 郵票.
![[Airmail - The 11th World Youth and Students' Festival, Havana, 類型 CTC]](https://www.stampworld.com/media/catalogue/Cuba/Postage-stamps/CTC-s.jpg)
