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