Dave,
Hopefully I can help a little as I managed to pick up a few fakes along the way. In the scan below all of the '63s are fake with the exception of the Musial. Please notice the two piece Brooks Robinson. The front was actually a photograph of a real card for lack of better way to explain attached to the backing, that is two pieces of the same card. Please also note the whiteness and the overall lack of contrast (particularly around the lettering) on the fakes. I have never seen a fake panel but they may exist. Most of the fakes were sold in slabs of fake grading companies but many have been broken out and are being sold individually. I won't buy a '63 that I can't physically examine first. Hope this helps.
Jeff
edit: I would also add that not all of the fakes were two piece from what I can tell. I have seen some that are scary close to the originals and have the same almost matte finish as the originals.