New member here. I have inherited my uncles' mod 28-2 ser# N598Xx
3 screw. Left side below the cylinder has the # 802 201207 on the frame.
My understanding is, this is a department's issue number. Is there a way to find out which department it might be? He was at one time a border patrol officer , Texas game warden, deputy sheriff then back to game warden again for many years. I figure it might be one of those organizations. Then again it might just be a gun he pick up along the way.