Is this anything? Tiny "stamped" coin? [решено]

Not sure if this is even a coin or what. I found it a bulk bin for 30 cents and it looked interesting.

There's sort of a circular "coin" about 10 mm in diameter stamped into the larger scrap of metal. The whole thing is no bigger than a fingernail. The metal seems like it could be tarnished silver, maybe.

I can't identify the design on the reverse but the obverse is a face of some sort.

Any ideas?

Weight: 0.40 g
Diameter: 13-16mm (irregular)
Thickness: 0.6mm

No idea, but if you rotate the reverse 180, it looks like a "G.W"?

Цитата: "BizzoDoes"​No idea, but if you rotate the reverse 180, it looks like a "G.W"?

​Bush?

Hello,
The style reminds me of this one: https://en.numista.com/catalogue/pieces88085.html
So you should be checking for German States, Pfennig and the letters GW

perhaps here? :
http://herbison.com/someoldcoins.org/saur/intro.htm

Thank you so much, PetrusAscanus! I didn't find my coin in that link, but I did see some that looked similar:
http://herbison.com/someoldcoins.org/saur/t/t359.htm

That led me to Google search for medieval coins of Bavaria, which led me to this marvelous catalog:
http://www.academia.edu/24323600/Medieval_Coins_of_Bavaria

And I believe I have found my coin here:

It looks like the upper-left (Wittelsbach 165) is my coin. The "G.W" is actually "E.W" for Dukes Ernest and William III. They ruled from 1397 to 1438, making this my oldest coin by more than 150 years! And to think I pulled it out of a "junk bin" for 17 cents! Flipping amazing!!

I will try to gather more information and create a Numista page for the coin if possible (not sure if the country and currency exist - would it be within German States?).

Wow, what a great junk bin find.