In 2003 Mastro auctioned the trophy that Lou Boudreau was presented by Sport magazine in 1948 for being named its athlete of the year. It was a modest trophy, but that award by Sport was quite prestigious back in the day.
The trophy sold for $3,700. Who knows what the buyer was willing to go, but I always have felt I dropped out of the bidding too soon.
http://legendaryauctions.com/LotDetail.aspx?lotid=37269