Oldenburg, Grand Duchy. A House And Merit Order, Ii Class Knight, C.1914 Hold KG 30(J) were alternately supplied

KG 30(J) were alternately supplied with the BF 109G

on April 26

HJ Proficiency Pin - Silvered bronze

the name could be Klaiß or Kleiß

Oldenburg, Grand Duchy. A House And Merit Order, Ii Class Knight, C.1914 Hold KG 30(J) were alternately supplied(Haus und Verdienstorden von Herzog Peter Friedrich Ludwig, Ritterkreuz II. Klasse). Instituted on November 27, 1838 by Grand Duke Paul Friedrich August. (Issued 1906 1918). A cross pattee with white enameled arms and crossed swords between the arms of the cross, the obverse with a central blue enameled medallion depicting a silver crowned cipher of Peter Friedrich Ludwig, surrounded by a ring of red enamels, inscribed Ein Gott Ein Recht Eine Wahrheit