Bundeswehr hat named to a Knights Cross Recipient

[ussjfkcv67]

Here is another named item that was passed down to me some years ago. Hat named to Oberstleutnant (Lt Col) Engelburt Bockhoff. 1939 - 1945, awarded knights cross 1943, Budeswehr 1956 - 1969. Soes anyone know what the pin on the hat is? 

[Proud Kraut]

Pin is from the aid agency: "Johanniter" (Knights of St. John).