Corrected from Raffaell Urbin to Rapahel of Urbino in a hand that may be Charles I's.
George Scharf noticed the difference in dimensions between MS. Ash. 1514 and MS. Ash. 1513 (George Scharf's notes in the Heinz Archive, National Portrait Gallery)
This picture is still at large in an unknown European collection. The photograph has been taken from Biblioteca Berenson, Fototeca, Villa I Tatti - The Harvard University Center for Italian Renaissance Studies