Musée de la Serrure, former lock museum in Le Marais, Paris, France

The Musée de la Serrure is a collection of locks, keys, and door knockers housed in the Hôtel Libéral Bruant, a 17th-century building at 1 rue de la Perle in the 3rd arrondissement. The structure features decorative rondels and cornucopia motifs that represent the craftsmanship standards of its period.

The museum was established in 1976 by the Bricard Company and showcased security devices spanning from Roman times to the modern era. The collection included bronze and Gallo-Roman iron keys along with medieval knockers and locks from the 16th to 19th centuries before closing in 2003.

The collection includes bronze and Gallo-Roman iron keys, medieval knockers, and locks from the 16th to 19th centuries, reflecting the evolution of security craftsmanship.

The museum closed in 2003, so there is no interior to visit. From rue de la Perle you can still see the Hôtel Libéral Bruant, built in 1685 as the home of architect Libéral Bruant, with its clock pediment and dormer windows. A blue plaque reading "Musée de la Serrure" remains on the left wall.

The museum occupied the Hôtel Libéral Bruant, built in 1685 as the private home of the architect Libéral Bruant, designer of Les Invalides. Paris sold the house to the Bricard company in 1968 on condition that it be restored and turned into a lock museum, which opened in 1976 and closed for good in 2003.