The Royal Observer Corps (ROC) was a civil defence organisation operating in the United Kingdom between 29 October 1925 and 31 December 1995, when the Corps’ civilian volunteers were stood down. (ROC headquarters staff at RAF Bentley Priory stood down on 31 March 1996). Composed mainly of civilian spare-time volunteers, ROC personnel wore a Royal Air Force (RAF) style uniform and latterly came under the administrative control of RAF Strike Command and the operational control of the Home Office. Civilian volunteers were trained and administered by a small cadre of professional full-time officers under the command of the Commandant Royal Observer Corps; latterly a serving RAF Air Commodore. I have since learned the post has been sevearly fire damed :/ chavs.
Hammerwich Hospital was built in 1882. It was funded by mine owners and mineworkers. Below is a photo of the staff posing for a photo for the record books. Sadly this is the only information i can currently find on this place, any other info would be greatly appreciated.