It is a commercial variant, if you bought from a gun shop, you probably paid close to what it is worth. So, what did you pay? A commercial 7.65mm is worth around $500-$700, sometimes more if in really nice shape...
Have no idea what a transit authority is for lugers? Crown N was the proof for commercial arms...
DWM made it, Germany shows it was sent to an English speaking country, probably the USA.
"Does anyone maintain this board" hmmm, trying to tick off the owner on your first posting?
Relax, read through the postings and do some searches.
Ed