This was one of my first finds with the Ace. It was about 3 inches deep under a tree. I believe that it is a suspender buckle with a piece broken off the bottom where the two tabs stick out. I don't recall seeing a buckle quite that fancy on suspenders or bib overalls, but it's probably pretty old. I went back later and looked for the missing piece but it's not anywhere to be found.
MrGee
MrGee