Dear Forum Members,
Would any of you better acquainted with the German language and NSDAP orginazation than I please help me determine what (department?) the acronym "O.G." is referring to under the "Revolutionszeit" heading in the following excerpt from the personnel file of an SS-Sturmbannführer?
For those interested, the file accompanies this Mantel which has been shown on this forum before.
Any help is greatly appreciated.