The 6th Inter-American Congress of Municipalities, Panama City 1956
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1956
The 6th Inter-American Congress of Municipalities, Panama City
17. August Wz: Keine Zähnung: 12½
![[The 6th Inter-American Congress of Municipalities, Panama City, Typ HY]](https://www.stampworld.com/media/catalogue/Panama/Postage-stamps/HY-s.jpg)
![[The 6th Inter-American Congress of Municipalities, Panama City, Typ HZ]](https://www.stampworld.com/media/catalogue/Panama/Postage-stamps/HZ-s.jpg)
![[The 6th Inter-American Congress of Municipalities, Panama City, Typ IA]](https://www.stampworld.com/media/catalogue/Panama/Postage-stamps/IA-s.jpg)
