Now showing: Guatemala - Air tax stamps (1919 - 1945) - 2 stamps.
1941
Central Post Office Stamp of 1927 Overprinted "1941"
WM: None Perforation: 14
![[Central Post Office Stamp of 1927 Overprinted "1941", type B11]](https://www.stampworld.com/media/catalogue/Guatemala/Air-tax-stamps/B11-s.jpg)
1941
Guatemala Postage Stamp of 1929 Overprinted and Surcharged
14. April WM: None Perforation: 14
![[Guatemala Postage Stamp of 1929 Overprinted and Surcharged, type C]](https://www.stampworld.com/media/catalogue/Guatemala/Air-tax-stamps/C-s.jpg)
