FDC
Bulgarien, Michel BLOCK 106, Brief
1980. BULGARIA. SECURITY IN EUROPE. Block on FDC 1.10.1980.
Bulgarien, Michel BLOCK 106, Brief
1980. BULGARIA. SECURITY IN EUROPE. Block on FDC 1.10.1980.
Bulgarien, Michel BLOCK 53A, Brief
1974. BULGARIA. SECURITY IN EUROPE. Block on FDC 29 x 1974.
Bulgarien, Michel BLOCK 53A, Brief
1974. BULGARIA. SECURITY IN EUROPE. Block on FDC 29 x 1974.
Bulgarien, Michel 145-150, Brief
1920. Wasov 6 ex. FDC PLOVDIV 20. X. 1920. Selten.