細節
cover 1922 (14 Dec.) and 1931 (3 July) envelopes registered to the same addressee in New York, franked at 25c. and 29c. respectively, the former with Labuan (15.12), Singapore (22.12) and London (17.1) transit d.s., the latter with Singapore (13.7) transit d.s.; both with light central vertical fold. Colourful