St Lucia 1967 unissued 6c with Statehood overprint in black, unmounted mint marginal block of 6 with semi-constant black flaw at right from overprint forme on R7/8
St Lucia 1967 unissued 6c with Statehood overprint in black, unmounted mint marginal block of 6 with semi-constant black flaw at right from overprint forme on R7/8