Northampton St. John's Hospital
The middle window is the tracery found on the St. John's Hospital, Northampton. The two faces on the side is a larger view of the window from the Newarke Gateway at Leicester. These features were commonly found in Gothic architecture to decorate windows.
Barfield, T. C. Longmans' Historical Illustrations England in the MIddle Ages (, : Longmans, Green, and Co., 1914)