Stroma 1971 Fish 5p on 4d (Eel) imperf single with 'Europa 1969' opt additionally overprinted 'Emergency Strike Post' for use on the British mainland, unmounted mint*
Stroma 1971 Fish 5p on 4d (Eel) imperf single with 'Europa 1969' opt additionally overprinted 'Emergency Strike Post' for use on the British mainland, unmounted mint*