Description The 'nut' is the lock mechanism, usually hidden within an exterior casing. Renaissance locks were 'warded' - that is, the lock mechanism was based on a series of metal barriers (wards) designed to frustrate the entry of all but the correct key. Keys for such locks have grooves to match the configuration of the metal barriers; after bypassing the wards, the key is free to turn and unlatch a horizontal bolt, unlocking the door or chest.
- Safe and Secure: Keys and Locks. Cooper-Hewitt National Design Museum, New York. 1987.
Provenance Charles T. Yerkes (1837-1905) [date and mode of acquisition unknown]; Charles T. Yerkes Estate Sale, American Art Association, New York, 1910, no. 490 or 491 (?); Henry Walters, Baltimore, 1910, by purchase; Walters Art Museum, 1931, by bequest.
Credit Acquired by Henry Walters, 1910
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