On a related note mentioned by Tim, I just had a look at Ivan Berryman's site - i.e the guy who did a sketch on that original autographed MVR paper - and all I can say is, what on earth does he think he's playing at vandalising historic documents in that way? It's an appalling thing to do.
Granted his paintings and sketches are not bad, although I did spot a few mistakes on some of them (his painting
Edward Mannock's SE5a has an Aldis Sight on it for example - Mannock was a strong advocate of removing them and using open iron sights). But whether good, bad or historically inaccurate, I think it's truly awful that he's doing that sort of thing to irreplaceable documentation. I certainly hope he doesn't continue to do so. What's next, is he going to spray paint a Dr1 on MVR's tombstone and try to sell that?
Al