Shawn,
On our main web page
www.parkerguns.org, on the left side of it is a list that is made up of links to informational pages. Take a look at the one named
Technical Information and it will explain the markings on the water table of your gun, that should help you ID your gun. When you think you know what it is, check out the link named
Parker Grades and compair your gun to the pictures of other guns of that grade.