Looking at an older Mark 1 - Ser# 1932XX. I know very little about the value of these pistols. It has a 7"bbl (or maybe 6 7/8) and is a good 98%. It has markings that state "RUGER MARK 1" "Sturm Ruger & Co. Southport, Conn USA" and "22 long rifle automatic pistol". It has adjustable sights. It has a silver medalion with a black eagle and no neck feathers. Beautiful piece. Any idea as to value? Thanks in advance.