The F75 has the enhanced 4th tone that was so famous with the CZ-3D. This tone is mainly for the the older type coins, but will sound off on a modern zinc penny as well.
Conclusion: If you're at an old site and don't dig any zinc signals, you're not likely to find any Indian head pennies. I'm so excited about my Fisher.
Conclusion: If you're at an old site and don't dig any zinc signals, you're not likely to find any Indian head pennies. I'm so excited about my Fisher.