Airmail - The 100th Anniversary of Polytechnic School 1973 1975
Näytetään: Guatemala - Postimaksumerkit - 1975 - Airmail - The 100th Anniversary of Polytechnic School 1973 - 1 postimerkit.
1975
Airmail - The 100th Anniversary of Polytechnic School 1973
14. tammikuu VM: Ei mitään Kaiverrus: Taller Nacional de Grabados en Acero. Perforaatio: 11½
![[Airmail - The 100th Anniversary of Polytechnic School 1973, tyyppi YL]](https://www.stampworld.com/media/catalogue/Guatemala/Postage-stamps/YL-s.jpg)
