The 620 barrel has the 3 trench gun cuts. The numbers on it look to be hand stamped..matches receiver...Remember that Anniston Armory was going strong back then..We would go to Alabama every couple years to visit family..and always stopped in Anniston..The others are like new. I think (guns are in safe) that the 520 is marked Ranger Sears...The photos for here are too much trouble..I would take a picture and Email it to a member to post..j...