Hitchcock's I.D.? Going Once ...

Summer is the season, it seems, for hawking history's private treasures. Up for bid this month are knickknacks from the estates of Kate Hepburn and Doris Duke, as well as some 400 items from Barbra Streisand's collection of costumes and memorabilia from her career. And for boat buffs, a New York City auction includes the biggest lot of Titanic remnants ever assembled, plus relics from other sunken ships like the Lusitania and the Andrea Doria.

--By Jeremy Caplan

KATHARINE HEPBURN June 10

The star wore this velvet 1928 BABANI WEDDING DRESS when she got married in her parents' living room. The sale lists 691 lots, including two self-portraits

TITANIC June 10

A rare DINNER MENU from the ship's last meal lists roast duckling and vanilla eclairs. Just three copies remain from the 1912 sinking, this one preserved by a survivor

DORIS DUKE June 2

Rare Indian gems earned the CARTIER DIAMOND NECKLACE once worn by the wealthy Newport socialite a record price tag

U.S.C. SCHOOL OF CINEMA June 17

Alfred Hitchcock's passport and one of WILLIE WONKA'S ORIGINAL GOLDEN TICKETS are among items being offered at a private auction for the school's 75th anniversary