Hong Kong. (Malaya). 1956. Envelope addressed to Perak, Malaya bearing Hong Kong SG 179, 10c violet tied by Hong Kong double ring '27th Dec', underpaid with framed 'T/5' tax hand-stamp in violet and bearing Malaya Postal Union postage due SG D14, 1c violet and SG D17, 4c sepia tied by Ipoh double ring on reverse. Nice combination.