Now showing: Colombia - Postal tax stamps (1935 - 1970) - 2 stamps.
25. May WM: None Perforation: 11
![[Not Issued Stamps Surcharged, type R]](https://www.stampworld.com/media/catalogue/Colombia/Postal-tax-stamps/R-s.jpg)
26. May WM: 2 Engraving: American Bank Note Co. Perforation: 12
![[Postage Stamp of 1949 Overprinted "SOBRETASA", type S]](https://www.stampworld.com/media/catalogue/Colombia/Postal-tax-stamps/S-s.jpg)
Now showing: Colombia - Postal tax stamps (1935 - 1970) - 2 stamps.
25. May WM: None Perforation: 11
26. May WM: 2 Engraving: American Bank Note Co. Perforation: 12
