German Red Cross
 
The German Red Cross in the 1950's published a series of books that listed missing soldiers. Sometimes a foto would be included. The usual entry was a foto; name; civillian occupation; dob; rank (not often correct); branch; and last known location. At the top feldpost numbers would be listed.
Pol u. Gendarmerie Einheiten in Lublin, Janow, Laczek, Kotlice, Piaski, Teratyn, Zolkiewka, Stary Zamosc u. POL RGT 309
From the German Red Cross missing soldiers books. I believe it should be Pol. Btl. 309

Foto Set 1

Foto Set 2

Foto Set 3

 

Hoh, SS u. Pol Fuhrer Rusland Mitte, mit Stab Pol Art Abt u. Pol Btl 323

Foto Set 1

Foto Set 2

Pol. u. Grend - Warsaw - & Pol Stab. "Sendel" & PB 209 - 301 Foto Set 1, Foto Set 2, Foto Set 3, Foto Set 4, Foto Set 5, Foto Set 6, Foto Set 7, Foto Set 8, Foto Set 9
Police Regiment "Alpenvorland" Foto Set 1
Police Regiment "Bozen" Foto Set 1
Police Regiment 10 Foto Set 1
Police Regiment 14 Foto Set 1