Braunschweig, Duchy. A 21-Year Long Service Cross For Enlisted Personnel, C.1870 Archive unquestionably a period made insignia

unquestionably a period made insignia

the Wehrmacht Long Service Badge (1st Class - 25 years)

the obverse depicting Franz Joseph I

the reverse with swing tabs holding the backer in place

as per the medal presented for sale here

Braunschweig, Duchy. A 21-Year Long Service Cross For Enlisted Personnel, C.1870 Archive unquestionably a period made insignia(Dienstauszeichnung fr Unteroffiziere und Soldaten nach 25 Jahren). Instituted 1 April 1833 by Duke Wilhelm. (1833 1879 issue). Constructed of silver, on loop for suspension from its period original ribbon, consisting of a Cross Patte, the obverse with a central medallion bearing a raised monogram of Duke Wilhelm, the reverse with an analogous medallion bearing a raised number 21, unmarked, measuring 31. 02 mm (w) x 35. 30 mm (h), weighing 14. 6 grams