From Diggersgt. Just got my Nox 600 about a month ago and am well pleased. Been a long time Explorer user and a longer time user of Garrett detectors. All have been good machines. Today I hit a Pittsburgh park. Got some clad, memorials and nickels. But my interesting finds were these shotgun and pistol headstamps. All were found within a 5 foot square area. Did a little research and found out there are websites dedicated to headstamps. These appear to have been made from about 1915-1938. No real monetary value, but definitely historical value. Could have been hunting, who knows. Too bad some of the stuff we find can't talk. Good Huntin' all.