Bulgarien
Viser nu Bulgarien - Post frimærker (1879 - 2024) - 2 frimærker.
1978
International Stamp Exhibition PHILASERDICA '79. The 100th Anniversary of Bulgarian Stamps - Stamps on Stamps
30. december VM: Ingen Perforeringer: 13
1978
International Stamp Exhibition PHILASERDICA '79. The 100th Anniversary of Bulgarian Stamps - Stamps on Stamps
30. december VM: Ingen Perforeringer: 13