South Africa 1938 2d Blue & Violet Airship Flaw, Scarce

1938 2d blue & violet AIRSHIP FLAW, upright watermark (SG 44ea). VF/M nicely centered pair, variety on Afrikaans stamp. Occurs on position r9/4. A quite elusive plate flaw, particularly so on this scarce colour of the 2d. (cv£950). See additional image below.