http://www.treasurenet.com/forums/today-s-finds/437045-rookies-best-day-so-far.html
I found 234 in 2 hours, it?s possible. Course mine was a big sandbox on a playground, here?s the link
Found in Bavaria, looks like possibly someone seated on the reverse, feels like it may be a copper hammered but not sure, any help is appreciated as always.
Yeah I had no clue it was a coin either. They are call hohlpfennig in German which means hollow penny. The back is just a reverse of the front as they are meant t be one-sided. It's definitely silver , from my searching it resembles others from the 1400's. Still searching for a match though.
I didn't know they existed either. If I were not with my digging partner I would have assumed it was a button or decoration. I'm on a German treasure Hunter site, an English one, and tnet, and I've not seen another posted. Elusive little buggers.