I got a signal today that I just cant understand, 12-47 repeatable had that silver ding to it so I dig thinking silver silver silver and it was just another penny. I just dont understand that. I understand that pennies can show up all over the place most of them in my area come up as 11-44, 12-45 for the 60's pennies most of them thou are 11-44 talk about weird. Maybe its my soil condition im in canada