Surprisingly, there aren't a lot of Korean cards bearing his name. In fact, I could only find one Korean-based card (if I missed something please let me know). There are at least three American-based issues released prior to the Korean card. Why? I dunno.
Additionally, there are numerous limited inserts available that I could not find pics of. If you happen to have a photo please pass that along. Now, on to the cards. BTW, there were numerous Ryu cards available through Panini, but I have not yet seen one autographed card -- even though several are noted on checklists. I suspect they were never issued -- i.e. Panini's America's Pastime.
2009 Bowman Sterling
World Baseball Classic Relics
#BCR-HRR