Wotan, you should know what that date represents and, as I remember, the photo is from a school personnel's album you told me. Next, if it were for all postal officers, why is the number of known pieces only a handful and, if this is true, why is the only know photo with this type of postal uniform?
Too many questions and too few answers.
We know for sure it is not an enlisted man's dagger, due to the date and the number.
The school answer is the only one that makes any sense.
JMO,
Ron Weinand
Weinand Militaria
