Erdspiegel- what is this?

Hey Erdspiegel! You are the expert- what do you think this is? Found in a lake yesterday. Thank you for your help!
Was könnte das sein? Gestern im Badesee gefunden. Sieht fast aus wie von der Griffschale eines Dolches, aber auf der Rückseite scheint eine Nadel befestigt gewesen zu sein. Krawattennadel? Danke schonmal!
Christoph

That looks like a Hitler-Jugend pin. It has been in 3 colors, red white and black.


Nice find. 

Thanks guys! I was thinking of a HJ dagger like Korsu posted but the back looks like a needle was attached to it so I think Trond may be right. HJ pin. The lake where I found it is full of targets, didn't have much time yesterday evening, an hour only. Actually I was looking for jewelry as people have been swimming there for ages. Found a sterling ring, sinkers, coins and a couple of WW2 cartridges. Might go back next sunday for some more.

I had some HJ pins like this in my ww2 collection some years ago.

I hope you find more nice relics in this lake. 

Thanks guys! I was thinking of a HJ dagger like Korsu posted but the back looks like a needle was attached to it so I think Trond may be right. HJ pin.

Yes,HJ-Membership Pin.

Danke! Thank you guys!