Italy's Borsalino, one of the world's most famous hat makers and known for Humphrey Bogart's fedora in the film "Casablanca," has been rescued by Haeres Equita, a group of investors led by a Swiss-Italian financier.

The company was put up for sale via an auction after a judge in the town of Alessandria, where the luxury brand was founded in 1857, refused last year to grant it court protection from creditors.

A court in the city of Turin approved a €6.4 million offer, a source with knowledge of the matter said, the minimum price that had been fixed for the sale.