Auction 309-320 - Europe & Overseas Egypt, including the Constantin Kelemenis - Day 4

Imperial Airways G-ADVB 'Corsair' Crash at Faradje, Dangu River, Belgian Congo 1939 (March 15): Registered Envelope from "BUKOBA 10 MAR 1939" (Tanganyika Territory) to Bristol, with "KAMPALA 13 MR 39" transit mark on reverse together with another reg. envelope from KAMPALA Uganda to Liverpool, both carried by IA service NO DN 178 Durban - Southampton, plane was forced down and sank into Dangu river (adhesives washed off), bearing boxed special cachet 'DAMAGED BY SEA-WATER' in black, applied on Mail to Great Britain Nierinck 390315d = CHF 1'700.