New/Old Commercial Model - Info Requested

[sheepherder]

Looks pretty clean inside...No rust...Goodly amount of bluing left, except where you would expect a holster to wear...

Barrel is a darker black than the rest of the pistol...and the rear slant of the front sight isn't lined up in a straight line like my other Luger barrels...

Numbers all match [82], except no number on breechblock or firing pin...Aftermarket mag w/steel extruded body & plastic 2-pin base...