WW2 AIRMAIL FROM SHIP HMS PEMBROKE 1942 EGYPT + WREN PoW RETURNED

Envelope By Air Mail from a WREN on ship H.M.S Pembroke, to M.S Burgh, Royal Artillery, M.E.F; KG6th 3d + 1/- franking, boxed handstamp in purple ITEM NOT DELIVERED BECAUSE ADDRESSEE IS REPORTED PRISONER OF WAR.  EGYPT POSTAGE PREPAID 24 AU 42 postmark on the back.