Love the w519/521's !!!!!!!!!!!Although, Adam and I are possibly the only two people who care about the boxing counterparts. Here is some minor info, that might be of interest:1 -- I have 18/20 of what I consider w521's. This is based that 5 images are reversed of their corresponding 1921 exhibits: 2 -- I have 5 "opposites," none of which are any of the above. So, the only way we can ever tell which Cline is what, is to find an uncut sheet. Although I kinda' like Cline fighting himself . 3 -- No. 19 Flamier can confirm they came in sheets of 20. Brennan, 14, also shows the same indication. Gotta love The "Zulu Kid" flirting with that Rebel Oakes "border infringement." .............