Signature of Wehrmacht Heer KC Recipient 'Joachim Barth'

In a very good condition a postwar postcard with original signature of Joachim Barth.
Hauptmann Barth earned the Knight's Cross of the Iron Cross on December 17, 1942 as Hauptmann/ Kommandeur, Panzerjäger-Abteilung 13, 13. Infanterie-Division.
The picture with signature comes together with letter and envelop written by Joachim Barth.
The following newspaper excerpt (dated 23.12.1942) describes why Barth received the Knight’s Cross:
“Hauptmann Barth captured a river crossing in the Terek region whilst serving as the leader of a Kampfgruppe. Afterwards he defended it for several days against numerically superior Bolshevik forces.”