So I went hunting in an old park with a buddy the other day, it was one we had avoided because of the amount of trash as well as the clientel the parks seems to draw. I never hunt for old coins just tend to focus on jewelry. About the 5th dig signal I got turned out to be a 1938 mercury about 10" down. I was hooked after that started moving at half speed looking for any high deep signal. As I said I don't have a clue how to hunt old coin. Beginners luck I guess, ended up with 11 wheat pennies, a buffalo nickel, mercury dime, small 10k gold pendant, small 10k gold ring, and a small silver ring. This hunt was about 5 hours til the park got to scary to hang around in. Pictures will be posted soon, as well as dates when I get coils cleaned up. If anyone would like to give me some pointers on hunting old coin. I will very soon return to that park. The soil I am hunting is California soil.