Malaya. (Trengganu - Singapore - Postage Dues). 1968. Registered Stamp-less envelope addressed to Singapore cancelled by Kuala Trengganu/ M1 - TR' date stamp '20th Aug 68' with matching registration label, routed via Kuantan/ Pahang, underpaid with circular 'T' tax hand-stamp and endorsed '90c' in red ink, bearing Singapore postage dues SG D7, 20c new blue (pair) and SG D8, 50c drab applied and tied by Killiney Road/ Singapore '23rd Aug' and endorsed 'P.O.O.C (Posted Out of Course).