I Am Trying To Find The Value Of A Model 37. It Has A Serial # 53xxx. It Is All Original. Probably 90%. It Has Matching Serial Number On Barrel That Has A Vent Rib With 3 Beads. Left Side Of Barrel Has A P Next To The Receiver. The Upper Left Side Of Reciever Has A Flaming Bomb And R.l.b. It Is 16 Ga. And Shoots Extremely Good. Any Info On This???