|
| Inscription |
Country |
Years |
# Issued to 1995 |
# Issued 1996-98 |
| Obock |
Obock |
1892-94 |
90 |
0 |
| Oesterr. Post |
Austria |
1890-04 |
|
0 |
| Offentlig Sak |
Norway (official) |
1933-49 |
50 |
|
| Off.Sak. |
Norway (official) |
1855- |
50 |
|
| OKCA |
Russia: Army of the North |
1919 |
5 |
0 |
| Oldenburg |
German States: Oldenburg |
1852-67 |
30 |
0 |
| Oltre Giuba |
Oltre Giuba |
1925-26 |
80 |
0 |
| Oman, Sultanate of |
Oman |
1971- |
150 |
|
| Oman, State of |
Oman (unlisted) |
1972- |
250+ |
|
| Orange River Colony |
Orange River Colony |
1903-08 |
15 |
0 |
| Oranje Vrij Staat |
Orange River Colony |
1868-1902 |
100 |
0 |
| Orchha or Orcha |
India: Orchha |
1913-40 |
20 |
0 |
| Orts Post |
Switzerland |
1850 |
2 |
0 |
| O.S. |
Norway (official) |
1951-52 |
7 |
0 |
| Osterreich |
Austria |
1922-45 |
|
0 |
| Osterreich, Republik |
Austria |
1946- |
2400 |
|
| Osterreichische Post |
Austria |
1908-19 |
|
0 |
| Ottomanes, Postes |
Turkey |
1913-16 |
100 |
0 |
| Oubangui-Chari |
Ubangi-Shari |
1915-33 |
110 |
0 |
|
