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K.U.T. - 1960 REVENUE STAMPS USED FOR POSTAGE (4 June) airmail cover to England, bearing Kenya 10c revenues (x3) tied by 'Litein' cds's, with boxed 'Insufficiently Prepaid for Air Mail Divert to Surface' cachet alongside. Attractive & very scarce provisional usage of revenue stamps for postage from a small post office.