FDC
![Bulgarien 1980](/image/114097/base250X250/bulgarien-1980-bulgaria-security-in-europe-block-on-fdc-1-10-1980.jpg)
Bulgarien, Michel BLOCK 106, Brief
1980. BULGARIA. SECURITY IN EUROPE. Block on FDC 1.10.1980.
![Bulgarien 1980](/image/114098/base250X250/bulgarien-1980-bulgaria-security-in-europe-block-on-fdc-1-10-1980.jpg)
Bulgarien, Michel BLOCK 106, Brief
1980. BULGARIA. SECURITY IN EUROPE. Block on FDC 1.10.1980.
![Bulgarien 1974](/image/83378/base250X250/bulgarien-1974-bulgaria-security-in-europe-block-on-fdc-29-x-1974.jpg)
Bulgarien, Michel BLOCK 53A, Brief
1974. BULGARIA. SECURITY IN EUROPE. Block on FDC 29 x 1974.
![Bulgarien 1974](/image/83379/base250X250/bulgarien-1974-bulgaria-security-in-europe-block-on-fdc-29-x-1974.jpg)
Bulgarien, Michel BLOCK 53A, Brief
1974. BULGARIA. SECURITY IN EUROPE. Block on FDC 29 x 1974.