1967, internal cover addressed to Enugu, struck by violet boxed "BIAFRA / 4d / POSTAGE PAID" handstamp and cancelled by "AGBANI 26/SP/67" cds., vertical crease at left and tiny toned, sent by austrian red cross team, fine and scarce
6; Übersee A-Z; BIAFRA;
6; Overseas A-Z; BIAFRA;