1939 KATHERINE RIVER, AUSTRALIA. On 18 January 1939 the Guinea Airways plane “Koranga” hit a tree on take off from Katherine, near Darwin, and crashed into the Katherine River killing all four crew members. This cover to Wiluna Gold Mines in Western Australia has an explanatory label, printed and affixed in Perth . It is tied by a Wiluna 7 FE 39 datestamp, 20 days after the crash. Wiluna is a small town 590 miles north east of Perth. A scarce label.