Τώρα εμφανίζεται Ριό Ντε Ορο - Γραμματόσημα (1910 - 1919) - 9 Γραμματόσημα.
WM: Κανένα Διάτρηση: 14
![[Nos. 13-16 Handstamp Surcharged, τύπος J]](https://www.stampworld.com/media/catalogue/Rio-de-Oro/Postage-stamps/J-s.jpg)
![[Nos. 13-16 Handstamp Surcharged, τύπος J1]](https://www.stampworld.com/media/catalogue/Rio-de-Oro/Postage-stamps/J1-s.jpg)
![[Nos. 13-16 Handstamp Surcharged, τύπος J2]](https://www.stampworld.com/media/catalogue/Rio-de-Oro/Postage-stamps/J2-s.jpg)
![[Nos. 13-16 Handstamp Surcharged, τύπος J3]](https://www.stampworld.com/media/catalogue/Rio-de-Oro/Postage-stamps/J3-s.jpg)
![[Nos. 13-16 Handstamp Surcharged, τύπος J4]](https://www.stampworld.com/media/catalogue/Rio-de-Oro/Postage-stamps/J4-s.jpg)
WM: Κανένα Διάτρηση: 14
WM: Κανένα Διάτρηση: 14
![[Not Issued Stamp Handstamp Surcharged, τύπος L]](https://www.stampworld.com/media/catalogue/Rio-de-Oro/Postage-stamps/L-s.jpg)
