SG C3. 1925.
Stampless cover to London with 'White Star' ships crest on the flap, bearing 'POSTED AT PITCAIRN ISLAND/NO STAMPS AVAILABLE' (cachet III) in violet. London circular datestamp (18 MR 25) and an inspectors mark, with London Foreign Branch 1 1/2d charge mark and 1 1/2d brown Postage Due applied at Woodford Green.
David Brandon Certificate.
Rare and Most Attractive.