I hope you don't mind me barging into your thread but I have had similar questions in the past too. I've had this Mike Donlin photo for a while now and I can't tell if its signed or if the signature is in the photo. There's a definite inscription at the top to Bert Ennis but it's in a different color. The signature seems weak for it to be in the photo, but maybe it is. I've tilted it at all different angles and tried magnifying and I still can't tell. The photo has cropping differences which make it unique from the similar photos I've found on the internet. No idea what its story is.