Viser nu Monaco - Forfalden-porto frimærker (1910 - 1919) - 5 frimærker.
1911
Albert I, Prince of Monaco
VM: Ingen Perforeringer: 14 x 13½
![[Albert I, Prince of Monaco, type B]](https://www.stampworld.com/media/catalogue/Monaco/Postage-due-stamps/B-s.jpg)
![[Albert I, Prince of Monaco, type B1]](https://www.stampworld.com/media/catalogue/Monaco/Postage-due-stamps/B1-s.jpg)
![[Albert I, Prince of Monaco, type B2]](https://www.stampworld.com/media/catalogue/Monaco/Postage-due-stamps/B2-s.jpg)
1919
Albert I, Prince of Monaco - Postage Due Stamps of 1911 Surcharged
VM: Ingen Perforeringer: 14 x 13½
![[Albert I, Prince of Monaco - Postage Due Stamps of 1911 Surcharged, type B3]](https://www.stampworld.com/media/catalogue/Monaco/Postage-due-stamps/B3-s.jpg)
![[Albert I, Prince of Monaco - Postage Due Stamps of 1911 Surcharged, type B4]](https://www.stampworld.com/media/catalogue/Monaco/Postage-due-stamps/B4-s.jpg)
