This is the view from the other end to Judith's photo!! I think we have now narrowed the build date for the coal cellar down to between 1867 (Detailed plans Auction 1867) for the and 1872 ( OS map from Norman Redhead) and what we are looking at is the "ash pit" from an early heating boiler. John Glithero is working on what type it may have been.

Way into coal cellar.