U.S. & Worldwide Stamps & Postal History

1938 (June) registered 5d Australia envelope, franked with Gilbert 5d George V, tied by "General Post Office Ocean Island" cds, sent via Kiama, New South Wales, where additional Australian franking was added, used in combination with three Great Britain adhesives, then to Montreal, where Canadian adhesives (5c and 8c George VI) were added, again registered, via Vancouver and Sydney, Australia to Kiama, interesting double-registered usage, with stamps of four different postal administrations
Estimate: $250