Those slippers will highlight a Christie's East sale of Hollywood and television memorabilia in the May 24th auction.
Also included in the auction are the Cowardly Lion's Oz costume, a Rolls-Royce from the James Bond classic Goldfinger and Christopher Reeve's Superman capes and body stockings.
The Lion getup, worn by Bert Lahr in the 1939 family classic, could fetch $600,000, collectors said. The Roll-Royce, a 12-cylinder, dual-ignition 1937 Phantom 111, probably could be driven home for about $200,000.
Costumes worn by Reeve in 1978's Superman and the 1980 follow-up, Superman II, are expected to sell for about $40,000 each.
Television memorabilia up for sale include the black wool yachting cap worn by Alan Hale, as the Skipper, in Gilligan's Island (estimate $10,000) and a cigarette lighter inscribed with a love note that Lucille Ball gave to Desi Arnaz ($1,000).
Christie's declined to place official sale estimates on the Oz treasures.
"Props from that period are very rare," Christie's pop art specialist Sarah Hodgson told the Daily News.
Christie's sold a pair of the Oz slippers in 1988 for $150,000, then a record. They were among seven or eight pairs worn by Miss Garland while filming the 1939 MGM classic.
Christie's will also be auctioning a 300-year-old Stradivarius violin that is expected to bring $1-1.5 million on May 5th.
The violin, an example of the master violinmaker's golden period, will be sold with other fine musical instruments.
"There's quite a bit of interest in "the Taft" (as the violin is called) by private parties," said Kerry Keane, the new head of Christie's Musical Instruments department.