Hi Aldo, it is a nice early version membership badge.
You have a nice collection there. The HJ SS triangle has been debated many times. They were found in Dachau and some say they were issued to ex HJ SS members, some say fantasy
"In all my years as a soldier, I have never seen men fight so hard." - SS Obergruppenfuhrer Wilhelm Bittrich - Arnhem
Nice original early badge. The HJ diamond from Dachau is definitely a period piece. Over the many years I have collected, I have found many Dachau insignia lots with this piece included. Those who say fantasy no not of what they say.
LIFE'S LOSERS NEVER LEARN FROM THE ERROR OF THEIR WAYS.