Ditunjukkan sekarang: Guatemala - Setem-setem bayaran pos (1990 - 1999) - 1 Setem-setem.
1999
Airmail - The 50th Anniversary of El Quetzal, International Society of Guatemala Stamp Collectors
14. May WM: Tiada Perforasi: 11½
![[Airmail - The 50th Anniversary of El Quetzal, International Society of Guatemala Stamp Collectors, jenis ALK]](https://www.stampworld.com/media/catalogue/Guatemala/Postage-stamps/ALK-s.jpg)
