I recently purchased a Mauser Sporting Rifle, with the name W.
Weisberger on the barrel . It is a very unique rifle in it's
configuration , and was wondering if you can provide information as to
the Gun maker and values.

http://www.galleryofguns.com/

try researching there, not sure on the specifics of your gun (model)
but im sure you can find info and price value of your gun there.