How to identify Fender Stratocaster models?

I recently came across a fender stratocaster online for sale for about $1350 but the owner does not know what particular model it is.. whether it be an american standard or mexican.. All he can tell me is that it is in aqua blue. no pictures were provided but i am going to see the guitar soon and i want to know if there is a way i would be able to tell what particular model it is. Thanks :D