I'm new to AF and I realize the last thread upd was a couple of wks ago. However, I just sold a Coach Messenger Bag and this was the embossed info on mine:
As you can see, mine doesn't follow the letter, number, number serial#...mine is like the other poster mentioned w/letter, number, LETTER, number serial#. I'm not sure if this purse is 2005 or 2006. It was purchased at a military installation that carries Coach and Dooney & Bourke bags.
All I'm saying is it looks like you're both right! luvs_designer_bagz was obviously wrong for saying that it couldn't be letter, number, number serial#, though. Just wanted to give an update....