The only genuine Metropolitan police box known to exist is at Crich. Glasgow still holds on to some of its version and Earl's Court has a trial version installed in 1996.

The National Tramway Museum, Crich, Derbyshire
Earl's Court, London
Buchanan Street, Glasgow
Wilson Street, Glasgow

Transport Museum, Glasgow
Great Western Road, Glasgow
Cathedral Square, Glasgow

Historic Dockyard, Chatham, Kent
Wetherby police station, Yorkshire
Boscombe, Dorset