epiphone thunderbird
 

I just recently bought a used epiphone thunderbird, It was made in china according to the sticker on the headstock, my question is how do I go about dating it to find out how old it is, and also how do I tell if it is a pro or non pro version? thanks for your help

if it has a bolt on neck, it's the IV model. the Pro models are neck through. the Classic Pro is passive, the Pro IV & V are active.

http://www.epiphone.com/Products/Electrics/Bass.aspx

to date your bass, one of these sites should help you

http://www.guitardaterproject.org/epiphone.aspx

http://epiphonewiki.com/index.php/Main_Page