Frank Warboys has generously provided us with a copy of one of his oil paintings:
Frank writes that this is a reduced size copy of his original oil painting (38″ x 18″) which depicts Tilty Abbey as it probably looked about 1500 A.D. The details of structure were advised by the late Duncan Willoughby and his his son, James; the latter is a medievalist at Oxford University, specialising in the Cistercian Order.
[ Updated 4th Feb 2015 ]