The 50th Anniversary of the Hydrographic Institute 2010
Now showing: Portugal - Postage stamps - 2010 - The 50th Anniversary of the Hydrographic Institute - 2 stamps.
2010
The 50th Anniversary of the Hydrographic Institute
22. September WM: None Sheetsize: 20 Design: Atelier Acácio Santos y Hélder Soares. Engraving: Cartor Security Printing. Perforation: 12 x 11
![[The 50th Anniversary of the Hydrographic Institute, type DDG]](https://www.stampworld.com/media/catalogue/Portugal/Postage-stamps/DDG-s.jpg)
![[The 50th Anniversary of the Hydrographic Institute, type DDH]](https://www.stampworld.com/media/catalogue/Portugal/Postage-stamps/DDH-s.jpg)
