country - Bulgaria, year - 1957, number of issues in the catalog - 23
Catalogue
country - Bulgaria, year - 1957, number of issues in the catalog - 23
| ID | Date | Name | Action |
|---|---|---|---|
| 303178 | 1/1/1957 | Additional Postal Services | |
| 20036 | 1/1/1957 | Agriculture | |
| 20037 | 3/6/1957 | Tour of Egypt | |
| 20038 | 3/8/1957 | 60 Years Magazine ""Novo Wreme"" | |
| 20039 | 3/8/1957 | Women’s Day | |
| 20040 | 4/8/1957 | Definitive: Economy | |
| 20041 | 4/13/1957 | Fruits | |
| 20042 | 5/13/1957 | Fruits (III) | |
| 20043 | 5/21/1957 | 10 years Civil Aviation in Bulgaria | |
| 20044 | 5/22/1957 | Canonization of Saints Cyril and Methodius | |
| 20045 | 6/20/1957 | Basketball European-Championships, Sofia | |
| 20046 | 7/18/1957 | 120th Birtday of Vasil Levski | |
| 20048 | 7/18/1957 | 75th Birthday of Georgi Dimitrov | |
| 20047 | 7/18/1957 | 6th World Festival of Youth and Students | |
| 20049 | 7/27/1957 | Esperanto Association | |
| 20050 | 8/13/1957 | Liberation and Defense of the Shipka Pass | |
| 20051 | 9/16/1957 | Forest week | |
| 20052 | 9/16/1957 | Tourisme | |
| 20053 | 9/16/1957 | Week of the Forest | |
| 20054 | 10/4/1957 | Trade Union |