Looking at Paul's complete W515-2 set that he posted here:
Link, there are many cards that do not follow rule #4 on where the @U&U copyright symbol is. That is, for these W515-2 cards, the symbol is not above the top border, but is instead at a position similar to where it is on the W515-1. Basically, rule #4 only holds for cards #1-40. For cards #41-60, the W515-2 also has the copyright symbol at a similar place to the W515-1's. And there are some cards (e.g., the #47 Babe Ruth card) where the copyright symbol does not exist anywhere on the card for both the W515-1 and the W515-2 sets.