Heritage said last week that it was offering thousands of dollars in refunds from the items auctioned in April as the Ann Sothern Collection -- including items like a whiskey flask purportedly owned by Errol Flynn and a Humphrey Bogart engraved cigarette case.
Heritage said in a statement that L.A. Prop consigned at least $35,000 worth of "purported celebrity-related items with authentication/provenance certificates that turned out to be fakes."
Eleven people bought the 22 objects supposedly owned by the late Sothern, a 1940s movie star.
In the lawsuit, Heritage is asking for monetary damages.
A listing could not be found for L.A. Prop. Messages left with the L.A. Prop officials listed in the lawsuit were not immediately returned Thursday.
