Airmail - The 25th Anniversary of Social Insurance Institute (I.S.S.S.) 1979
Đang hiển thị: En-san-va-đo - Tem bưu chính - 1979 - Airmail - The 25th Anniversary of Social Insurance Institute (I.S.S.S.) - 2 tem.
Đang hiển thị: En-san-va-đo - Tem bưu chính - 1979 - Airmail - The 25th Anniversary of Social Insurance Institute (I.S.S.S.) - 2 tem.
![[Airmail - The 25th Anniversary of Social Insurance Institute (I.S.S.S.), loại QI]](https://www.stampworld.com/media/catalogue/El-Salvador/Postage-stamps/QI-s.jpg)
![[Airmail - The 25th Anniversary of Social Insurance Institute (I.S.S.S.), loại QI1]](https://www.stampworld.com/media/catalogue/El-Salvador/Postage-stamps/QI1-s.jpg)
