Waldemar Riefkogel and Erwin Meierdrees

Officers of SS-Panzergrenadier-Division "Totenkopf" celebrating the Summer Solstice in the Eastern Front. On the right hand side of the photograph is SS-Obersturmführer Waldemar Riefkogel (Chef 1.Kompanie / I.Abteilung / SS-Panzer-Regiment 3 "Totenkopf"), in the middle is SS-Hauptsturmführer Erwin Meierdrees (Kommandeur I.Abteilung / SS-Panzer-Regiment 3 "Totenkopf"), while the SS-Obersturmführer on his right is not identified. The picture was taken on 20-21 June 1943 just before Unternehmen Zitadelle (Battle of Kursk).

Source :
http://charkow-43.ucoz.ru/photo/personalii/waldemar_riefkogel/113
https://www.tumblr.com/fallschirmjager/6869377152/3rd-ss-panzer-regiment-totenkopf-celebrating-the

Horst Freiherr Grote and Harry Herrmann

From left to right: Hauptmann Horst Freiherr Grote (Luftattaché bei der Deutschen Gesandtschaft in Sofia) and Major Harry Herrmann (Ia XI. Fliegerkorps). The picture was taken on 21 June 1942 in France by Toni Schneider (1920-2006).

Source :
https://commons.wikimedia.org/wiki/File:Bundesarchiv_Bild_101I-582-2122-06,_Frankreich,_deutsche_Offiziere.jpg
https://forum.axishistory.com/viewtopic.php?p=2248453#p2248453

Radu Korne and Wilhelm Bittrich

Divisionskommandeur SS-Brigadeführer und Generalmajor der Waffen-SS Wilhelm Bittrich (right) presenting his unit (9. SS-Panzer-Division "Hohenstaufen") to Rumanian general and Ritterkreuzträger Radu Korne, who commanded an independent Motorised Brigade during the battle of Stalingrad. The picture was probably taken in the summer of 1944.

Source :
ECPAD archives (DAT 2576 L10)
ECPAD archives (DAT 2576 L11)
"Historisch Album - De Hohenstaufen - 9de SS-Pantserdivisie 1944: Normandie, Tarnopol, Arnhem" by Herbert Fürbringer
https://imagesdefense.gouv.fr/
https://www.rumaniamilitary.ro/general-de-brigada-radu-korne
https://www.warrelics.eu/forum/axis-militaria/rkt-606677/