Bulgaria 1988 Centenary of State Railways sheetlet containing set of 6 unmounted mint, SG 3493-98 (Mi 3637-42)
Bulgaria 1988 Centenary of State Railways sheetlet containing set of 6 unmounted mint, SG 3493-98 (Mi 3637-42)
Bulgaria 1988 Centenary of State Railways sheetlet containing set of 6 unmounted mint, SG 3493-98 (Mi 3637-42)