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A crash cover is a philatelic term for a type of cover, (including the terms air accident cover, interrupted flight cover, wreck cover) meaning an envelope or package that has been recovered from a fixed-wing aircraft, airship or aeroplane crash, train wreck, shipwreck or other accident. Crash covers are a type of interrupted mail. Crashes of flights carrying airmail were a regular occurrence from the earliest days of mail transport by air. In many cases of aircraft crashes, train wreck and shipwrecks, it was possible to recover some or even all of the mail being carried, with perhaps some charring around the edges of some pieces if there had been a fire, or water damage from flying boat crashes or shipwrecks. In such cases, the authorities typically apply a postal marking (cachet), label, or mimeograph that gets affixed to the cover explaining the delay and damage to the recipient, and possibly enclose the letter in an "ambulance cover" or "body bag" if it was badly damaged and then send it to its intended destination. Aviation related crash covers are a specialised collecting area of aerophilately and are much-prized items of postal history, because they are generally rare, but as tangible artifacts of often-tragic accidents they have a story to tell. The 367 covers salvaged from the ''Hindenburg'' disaster are especially desirable,〔(Collecting Air Crash Covers )〕〔(Hindenburg crash covers )〕 with prices ranging from US$10,000 and up; a cover at the Corinphila auction in May 2001 realized 85,000 Swiss francs (US$75,000). The American Air Mail Society has a "Crash Cover Committee" specializing in the study of crash covers. There is also a Wreck & Crash Mail Society, whose members collect all types of crash & wreck covers. ==References and sources== ;Notes ;Sources * * * 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「crash cover」の詳細全文を読む スポンサード リンク
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