Stamps of Ecuador, 20th Anniversary of OPEC issue
1 to 2 of 2
postage
1980, Nov 1 20th Anniversary of OPEC issue unwmk (no perf info)
| - | 3.40s | multi |
airmail
1980, Nov 1 20th Anniversary of OPEC issue
| - | 7.60s | multi |
1 to 2 of 2
| - | 3.40s | multi |
| - | 7.60s | multi |