German WH Feldgendarmerie Rank Promotion Certificate

In a very good condition German Wehrmacht (Heer) Feldgendarmerie Promotion Certificate on the name of Feldwebel (Oberfeldwebel) Adolf Ostermann, member of the Feldgendarmerie Ersatz Abteilung Litzmannstadt.
A very hard to find feldgendarmerie certificate!

Code: 84138