Ditto what shady said. The RS might be RSG, take an old soft tooth brush and clean it up some and see if the "G" shows up. That would be a Robert Irwin stock made for Saginaw. Take the mag pouch off and see if there are any stamps under it. The Winchester recoil plate is a little differant with the X on it. They show up on Win screws but I haven't seen one on the plate. Any idea ware Mr. Iverson may have got it from? DCM sold carbines in the '60's like for about $20.00.

HTH.....Frank