Beamish Museum, County Durham, England. This is a portable engine, built by Richard Hornsby & Sons of Grantham, in Home Farm. It's not owned by the museum (who have at least two others, of different origins), it's part of the Tyne & Wear Museums collection, possibly the 1875 built No. 2958. It's seen here in long term storage inside the tall shed in the northern courtyard of the eastern complex, east of the gin.