A parcel label addressed to the Titanic is to sell at Mossgreen Auctions in Melbourne on November 29-30.
It's valued at $14,500.
It reads: "Marconi Operator/RMS Titanic/co The White Star Line/Southampton" and was sent on April 11, 1912 - the day after the ship left port.
Five days later the Titanic went down in the mid-Atlantic.
Gary Watson, Mossreen's director of stamps & postal history, said: "In my opinion, this parcel label is the most evocative and most important postal item associated with the most famous of maritime disasters."
Another example in lesser condition made £11,760 ($14,500) in 2002, suggesting the lot could dramatically exceed its estimate.
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