I returned to an old School park with my Tesoro Tejon where I have been pretty sucessful in digging up some Silver mercs. And on my very first good signal, I find this nice 1939 Mercury Dime. Let me tell you guys and gals out there, never give up on the grounds you search. You are not a computer knowing how much ground you covered. Keep at it and at it and at some more, and your gonna hit silver.