Hunting & Fishing shotgun help

[Porter24]

Hey guys not real sure where to post this, but I got a few shotguns handed down from my grandfather and I would love to know how old they are and information on them. I would never sell them but it would be cool to know what they are worth. I have the models and serials where can I or is there any place that i can look them up online?

Thanks guys.

 

[The Mechanic]

Re: shotgun help

http://armscollectors.com/sn/windates.htm
http://armscollectors.com/
Best site on the internet bar none