New Steiner NYY jersey "serial #" tagging??

[nickacs]

I was on the MLB auction site last night and saw that a lot of the opening day 2011 NYY home white jerseys are up for auction.
I really like the Posada and then upon clicking the jersey link, I noticed one of the pics has a new NYY serial# tagging in it? I wasn't sure if it was just his, so I clicked on a couple of the other NYY jerseys up for auction and sure enough, they all do!

They still have Steiner stickers on the tagging, but noticed this new tagging underneath?? Anyone know anything about this, or can anyone from Steiner comment? If this is Steiner's doing, I really hope this sticks and can finally trace these new serial #'s back to their database!!!


Here's a pic of what I'm talking about: