| Description | Includes:
-letter to Lorne Campbell, Courtauld Institute of Art, London from Professor C.A. Heusch, University of California, USA, dated 5 June 1987, concerning a portrait purported to be of royal patronage
-letter from Lorne Campbell, Courtauld Institute of Art, London, dated 10 June 1987, concerning the painting of royal patronage attributing it to be a copy of Myten's portrait of Charles I
-letter from Xavier d'Herouville, France, dated 5 August 1999, concerning a portrait resembling Myten's Charles I |