It looks like it might be style 5520, from approx. 2004-ish.
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My estimate of the age of the wallet might be off.Hey thanks i got it in 2011 and i called and asked about it just now and they told me that im missing 1 number from the style number but thank you for your help.
Did you buy it new from a Coach store? If you got it at an outlet store in 2011, it's possible that they may have had a return or found some NOS (new old stock). If you bought it second hand, there's no way to know when the original owner bought it.
As for calling Coach, I'm suspecting that you got misinformation. (And it's not the first time they've done it!)
By "missing 1 number," they are referring to style numbers that are currently 5 digits, but back when I believe your wallet was made, style numbers were just 4 digits.
Coach employees aren't trained to authenticate and if an item isn't currently in their stores or the style number isn't in their computer system, they assume it's either fake, an incorrect style number or non-existent style number.
I assure you that the style number of the wallet I posted is only 4 digits and is about 13-14 years old. There could possibly have been similar newer wallets with 5 digits and maybe that's one you may have bought in 2011 but I can't find any style number to verify it.