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 an air crash, train wreck, shipwreck or other accident. Crash covers are a type of interrupted mail.
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 an air crash, train wreck, shipwreck or other accident. Crash covers are a type of interrupted mail.
Source: Wikipedia "Crash cover" · CC BY-SA 4.0
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