Now showing: Guatemala - Air tax stamps (1919 - 1945) - 1 stamps.
1937
Stamp Exhibition, Guatemala City - Central Post Office Stamp of 1927 Overprinted "EXPOSICION - FILATELICA - 1937"
17. March WM: None Perforation: 14
![[Stamp Exhibition, Guatemala City - Central Post Office Stamp of 1927 Overprinted "EXPOSICION - FILATELICA - 1937", type B4]](https://www.stampworld.com/media/catalogue/Guatemala/Air-tax-stamps/B4-s.jpg)
