Padded cells are few and far between now-a-days, so the opportunity to visit one doesn't present itself very often. So rare in fact, that I should imagine this will be the only padded cell I ever get the opportunity to visit, in situ and outside of a museum. This particular padded cell is...
Pocock was a manufacturer of padded cell fittings, it's the metal plate surrounding the observation window on the outside of the door bearing the Pocock Bros. name. It goes without saying they are incredibly rare.