Postage due proof of the border key die in black on glazed card (92x60 mm), ex. De la Rue archives endorsed "REQN. 339" at upper right and "15.11.32" at lower left and "Appd HS 15/11" at right by Henry Stanfield (returned by the Crown Agents on the same day, 15.11.1932) (Van der Molen p. 341), a very rare item. Provenance: Robson Lowe London 1979 and Peter van der Molen