Thought you might like to see these photos.
I had a relative who was admitted to Norfolk County Lunatic Asylum on 2nd January 1894 (Thorpe St Andrew, Norwich). He died there twelve days later on 14 January 1894.
Originally the burial site had metal plaques giving its grave number; but in the 1970s the governing body of the hospital made the shocking decision (much against the advice of the Chaplain and various members of staff) to sell these plaques as scrap metal. The result is that now it is not possible to know exactly where in the burial ground a particular individual is buried.
Cheers, FHA