Thanks to all for the interesting discussion of an often over looked subject.
By the way, the subject is more than likely an EM due to his belt buckle. His hat cords may not be indicative of an officer but being in the postal colors which are indiscernible in this B&W photo. Personally, I would lean toward the idea of a 1st. model postal dagger over an EM version. If there were an EM version, surely there would be many more around and besides, a postal delivery person wasn't a highly paid position affording those amongst the ranks to purchase an expensive dagger. I'm just thinking out loud and have no information or period documentation..
Manfred, that's a really, really cool dagger.
"Inspectors allowed to carry weapons"!
I'm going to have to keep a closer eye on my post guy who after staying in his delivery van for extended periods of time, (drinking his lunch) walks a little bit c o c k -eyed and looses half of the mail. (always felt that he was reading the latest issue of the GDC news letter or MAX Gazette but now I'm having other thoughts)
A great and interesting subject and a cool dagger.
