Sarawak. (Great Britain). 1948. Air Mail envelope addressed to Kuching, Sarawak bearing Great Britain SG 485, 1/2d pale green and SG 489, 2 1/2d pale blue (pair) tied by London slogan, underpaid with boxed 'T' and framed 'G.P.O. Kuching/ To Pay '46' Cents' applied in violet on face. Scarce postage due mail from Great Britain to Sarawak.