Fender is notorious for its multitude of 'Anniversary' basses over the years ... 2011 happened to be the 60th Anniversary of the Precision bass, so they came out with 60th Anniversary model (which this one is not), and then every P they put out in 2011 got the commemorative neck plate ... this bass is nothing more than a 2011 American Special (same as any other year), only with the commemorative neck plate, which signifies it being born in yet another 'anniversary' year .. nothing more, nothing less ...
If you scan YouTube and the like, you will see a myriad of basses listed as 'Anniversary Models', and usually it is not the case ... as there were very specific productions of Anniversary MODELS, and the rest just either got a neck plate, or as in the case of 2006 (60th Anniversary of Fender), the dime size '60th' medallion on the back of the headstock ... it really means nothing special, despite sellers often thinking it does and trying to ask more $$... and buyers falling for it ..
Edit to add: .. in reply to OP last question, if it is a 2011 American Standard that you are comparing this to, the AmStand will have the commemorative neck plate, AND string thru BODY bridge ... IF it is a bass that is not usually a STB model, it will be as the AmSpecial you have pictured .. nothing changes because of the fancy neck plate ...