The Prospective of Castle Rushen

On the sketch is written: "The Prospective of Castle Rushen on the South eastside. A) The innerward of the Castle. B) The wall of the Castle. C) The wall aboute the Castle. D) The Counter-Scarpe. E) The new building wherein ye Earle of Derbie lived. F) The new worke. G) The Burne that the sea comes in. H) As the towne appeares."