Actually, now that I think about it, Rhys is probably still wrapped up with finalizing shipping from his recent auction. Also, not saying there aren't others on the board who could help, but those names sprang to mind first (don't want to unintentionally snub anyone
).
I took the liberty of laying each of the three photos out side-by-side, to scale with each other, for easier comparison. The larger one is from Hunt's auction, your uncle's is top right, and the other one I found from the second link (which oddly uses an eBay gallery image for its posted image) is bottom right.
You might also advise your uncle that it is best to scan all photos in color for eBay listing, even if they are black and white, as showing a grayscale scan like he has posted will make anything look like a photocopy, whether real or not.