Oh can I ever relate to this! I, too am cursed to digging foil for a long time. I frequently hunt a old large park that is full of trash. One day I hit a spot where I.’ve pulled several pieces of silver, when I hit a solid “1” that appeared to be kinda long and shallow. It didn’t give the iron grunt, but I wanted to ignore it. I actually walked away but curiosity got the best of me. I plunged my digger in and was couldn’t believe what was hanging from the plug. I sliced it in two, but I quickly found the other half. It’s plated, but sure made me aware of what I could be passing up.