Bull was sold at auction for $700,000 to an unknown buyer.
Kenna's medal group was sold for a record high A$1,002,000 to an unknown buyer.
Three additional markets are to be divested to an unknown buyer.
Warner sold them in 1981 to an unknown buyer through Christie's East for $12,000.
The car was sold in 2006 to an unknown buyer for in excess of $360,000.
This season's unknown buyer did not remain so for long -and by choice.
The property was sold in 2008, to an unknown buyer, for £1.75 million.
Seymour won the court battle, but sold the house in November 2007 to an unknown buyer.
This option package was not mentioned in any sales literature, so it was unknown to most buyers.
Had he expected there to be an unknown buyer at the auction?