He sent me the address of his web-site, and was obviously legitimate, so I said yes. Last week, he emailed me to say it was done, and to ask for my address so that he could send me a print, and today it arrived. Here's how it appears on his website (and if you go there, look for "Dogs" and then "Bearded Collie" and you'll see a larger size version):
Isn't that amazing? I love it and am going to frame it and treasure it. It's not just a great "beardie" picture, it's Robinson, to the life. It looks even better in "real life" because the definition of the black and white tones is much sharper.