Menampilkan: Uruguay - Prangko (1856 - 2025) - 3 prangko.
6. Januari WM: 1 Ukiran: South American Bank Note Co., Buenos Aires. Perforasi: 11½
![[The 1st Anniversary of the Pan-American Postal Congress, Tipe EM]](https://www.stampworld.com/media/catalogue/Uruguay/Postage-stamps/EM-s.jpg)
17. Mei WM: Tiada Ukiran: Waterlow & Sons, Londres.
![[The 100th Anniversary of the Battle of Las Piedras - Overprinted "ARTIGAS - 1811-1911" and Surcharged, Tipe EN]](https://www.stampworld.com/media/catalogue/Uruguay/Postage-stamps/EN-s.jpg)
![[The 100th Anniversary of the Battle of Las Piedras - Overprinted "ARTIGAS - 1811-1911" and Surcharged, Tipe EO]](https://www.stampworld.com/media/catalogue/Uruguay/Postage-stamps/EO-s.jpg)
StampWorld
1911
The 1st Anniversary of the Pan-American Postal Congress
1911
The 100th Anniversary of the Battle of Las Piedras - Overprinted "ARTIGAS - 1811-1911" and Surcharged
