I don't have it on my person, unfortunately. I didn't think to snap one when I had it, and it belongs to the barn manager. I may actually see if she wants to sell it, lol.
The description pretty much covers it, but I've looked at numerous black contoured wither relief pads with leather pieces that look similar. None of them seem to have the thinner part in the center, though. I found a Weaver one that looked like it did, but it had a brand stamp on it. This one has nothing! Guess it's easier for someone to look at a picture and say "THAT'S my pad!" than to try and decode a description :P
It's kind of a long shot, I know. Worth trying though!