 |
 |
 |
 |
| 1973 | 1972 | 1973 | 1972 |
 |
 |
 |
 |
| 1972 | 1972 | 1981 | 1981 |
 |
 |
 |
 |
| 1981 | No Date | No Date | No Date |
 |
 |
 |
 |
| 1981 | 1975 | 1975 | 1975 |
 |
 |
 |
 |
| 1975 | 1973 | 1975 | 1975 |
BOB'S MONGOLIAN STAMP COLLECTION
|
|
|
|
|
| 1973 | 1972 | 1973 | 1972 |
|
|
|
|
|
| 1972 | 1972 | 1981 | 1981 |
|
|
|
|
|
| 1981 | No Date | No Date | No Date |
|
|
|
|
|
| 1981 | 1975 | 1975 | 1975 |
|
|
|
|
|
| 1975 | 1973 | 1975 | 1975 |