Luxembourg 1977 cover bearing 1975 Welfare Fund 3f Orchid & 2 x 4f Helleborine with Liechtenstein 15r used as postage due and cancelled 'T' in circle
Luxembourg 1977 cover bearing 1975 Welfare Fund 3f Orchid & 2 x 4f Helleborine with Liechtenstein 15r used as postage due and cancelled 'T' in circle