Thanks for your input. Im not sure I know what a "tool tag" is....... To be sure, I havent a clue what it is. The fact that I live at the base of a huge "slag" plie that completely surrounds my backyard, and Im well within walking distance of the old breaker I just assumed it was a miner's tag. But you are right it could be somethng else. I live within a twenty minute drive in any direction of about 30 old coal mining companies and even more shafts, of course all are closed down now and most of the shafts sealed up. My town was actually a "patch" town for mine workers and slightly down the road is the Concrete City where all the mine bosses lived, all overgrown now and falling apart. Im very interested in swinging the detector there! I have researched all over for a mining company or even a vein that would have the initials K.I. Co. but to no avail and at this point there is probly no way I could find out but none the less it was a thrill hearing that clear tone and digging up something really different! Thanks for your response!!