for the grips and grip screw.
The pictures are not good, but that gun looks too far gone to be restored. Removing the pits will remove most of the markings and the gun will look just as bad, sort of like a Hollywood makeup job on the cat. Magazines (after market) are available from www.gunpartscorp.com
. They also have grips, but "gungrip" grips are better (IMHO).
That would make an OK carry gun; they are very reliable but the safety and sights are against them. On the plus side, if you use it and it is confiscated, you have not lost a valuable collectors item. The "TC456" could be some property mark or even a police evidence identification. I know of no way to tell.