Dwight,
Indeed, it seems that the SN under the barrel and on the front of the frame have been struck before the proof test (as it should be done). After blueing the SN on the left receiver was struck in a rather rude way.
It is a pity that I do not have a good example of a 1934 Oberndorf for a close examination. I have to rely on a few old pictures...
__________________
Joop
|