Hit 7 wheats and a well worn 1918 Merc. today. What was so rewarding, though, was the Merc. was in a pile of trash. Literally, a heap of trash. The Mercury dime was 4" deep and in the clod of dirt was 2 pieces of a broken junk earring, a folded tab tail, a small piece of foil and a 1/4" washer. the Omega and 5" coil, none the less locked onto the dime with a solid 84 reading. All the trash items were somewhat spread out and the 5" coil was able to see the dime. Some kind of detector, in my opinion. I had some emi chatter from some nearby power lines, so went to 16 disc. for most of the hunt and sen. of 99 and d4 tones. HH jim tn