Locks & Fastenings
1978
Mortice deadlock (Butters System of 1955) by Josiah Parkes and Sons Ltd of Willenhall, 1978
Mortice escape deadlock (Butters System of 1955) by Josiah Perks and Sons Ltd of Willenham, 1978
Two of three keys for mortice dead lock, 3G110, by Chubbs, 1972.
Six-lever M6 mortise deadlock and key, 1973
Parson's balance lever double-sided rim dead lock (two drill pins) in two parts plus key by J. Duce
1973
Ten-lever 'Impregnable' rim automatic deadlock and three keys, 1973
1844
Chubb's five one-sided six leaver detector rim dead lock, with key, c.1844.
1830
Eight inch one-sided dead lock. Triple throw, Barron's patent c.1830. Consists of Lock, plate, key and pin.
1843
Tann's seven inch reliance-guarded seven lever one-sided detector dead lock with key, c.1843
Mortice dead lock, 3G110, and three keys by Chubbs, 1972.
Eight inch, five lever one-sided rim dead lock. Stamped 'V. R. Detector Patent, with key.
