Rare indeed. Only once have I seen one similar to this which was attached to a double-door “safe” in the Science Museum. No longer on display the piece in question had come from Bridgewater House in what is now Park Lane at a date given as 1832. The keys for this wrought iron cupboard had been lost on two occasions, opened by Chubb on the first, and by E.Smith & Co.,member of the MLA on the second.
At the time it was made Chubb had not yet started manufacturing safes or strongrooms and were in fact having them manufactured for them, fitted with their own locks, by Edward Tann & Son.of Hackney.
This is covered in some detail with illustrations which include the Chubb lock of the time in my website in a footnote at the end of the history of Edward Tann & Son. http://www.safeman.org.uk/edwtann.htm
Alongside this Chubb safe was a square-bodied Chatwood Safe Number 18905 (1891) which had been used to house pieces of bronze from Russian cannons during the Crimean War and from which are made the Victoria Cross.
