Possible serial number fraud on Auction Arms

John ;

Do I Detect a different finish on the flat above the "m" than on the radius below thew "m" ?

I'm calling attention to the ground finish having considerable evidence of "grit strike lines" (closely spaced parallel scratches of highly similar scratches that appear in ground surfaces caused by loose trapped grits in the grinding wheel unevenly striking the surface being ground.

I can see no evidence of this anywhere else in the photo.

Just my observation, I do not know if it means anything.

ViggoG