Kriegsverdienst Kreuz Erste Klasse (KVK1) / War Merit Cross First Class.
On the back maker marked with “3”, meaning it was made by medalmaker Wilhelm Deumer from Ludenscheid.
Made of zinc, most of the silver color worn off. Ideal for on a worn tunic. Priced accordinly to condition, this is not a nice buntmetal badge, but stil a rather nice late war zinc zward.