Rhodesia & Nyasaland. 1956. Air Mail envelope addressed to London bearing SG 1, 1/2d orange (3), SG 2, 1d ultramarine and SG 3, 2d bright green (6) tied by Lusaka/ Northern Rhodesia double ring, underpaid with Great Britain postage due SG D36, 1d blue tied by London receiver with hand-struck '1d/T' in green on face. Very attractive item.