TRISTAN DA CUNHA 1978 RFA RELIANT IMPERF PROOF SHEET, COWELLS
RFA Reliant imperforate proof sheet of 60 lacking inscriptions and with shade differences compared to issued stamps. Ex Cowells security printers. Very scarce. Folded and creased otherwise fine. SG253var; SC250var
Note: printing of the issued stamps was undertaken by Cartor in France
