Dug up my first ever U.S. silver bust coin today. About 6" deep with a mixed tone signal, but sounded good enough to dig. A very well worn 1820 U.S. dime found at the river near the waters edge, wedged between rocks in the exposed gravel/stones during low tide. Lucky for me I dug that particular signal because a lot of the decent signals I was getting was actually melted aluminum blobs, and I was becoming selective. It was all black when I dug it and for a few seconds I thought I had another Spanish half real, till I looked at it more closely and realized what I finally found. Most of the Spanish silver half reals that I find are from the 1700's and are older but for many years I preferred finding a U.S silver bust coin, it was at the top of my bucket list. X-Terra with 3khz, 9" coil. Jabbo