all stamps : Stamps for sale - Monaco
Now showing: Monaco - Postage stamps (1885 - 2024) - 1 stamps.
1967
The 9th International Hydrographic Congress, Monaco
7. December WM: None Sheetsize: 30 Perforation: 13
![[The 9th International Hydrographic Congress, Monaco, type AHO]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Monaco/Postage-stamps/AHO-s.jpg)