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Re. the panzer:
It's a greater possibility that Ausf. H is photographed, since the Gs were used in Eastern front mostly, and just a fraction in N. Africa.
The -H was main production variant, produced from winter 1942/43 towards the end of 1944.
He was actually in the Eagle's Nest? That is awesome! What did he say about it and the rest of Berchtesgaden?
the buildings on the hump really got creamed at wars almost end, the private homes or should say run by Hitlers thugs were blown apart and then after war demolished. so TO your dad and unit visited the place after the US bombing obviously. Raid was on April 25, 1945 every bldg on the Obersalzberg was damaged to some state. After the raid and the Berghof was smacked the SS burned it into a derilict but it of course due to the photos be walked through