HJ diamond pin by Deschler & Sohn, München. Tombac construction with soldered on prongs. Maker marked on the reverse with the suffix RZM code of Deschler "52" (of M1/52"). Very typical deep crisp maker stamp by Deschler!!  Excellent condition. No repairs, no damage.

The variant with prongs was used for the dagger grip or to be placed on the cap. 

Top piece! Rare maker and top condition!