Interesting stamp on Mauser rifle

[kjohn]

http://www.canadiangunnutz.com/forum/showthread.php/1146366-Odd-Mauser-98-pic

The above thread gives the details of the rifle. I found another neat stamp while examining the rifle with my handy dandy digital microscope. Although it is not very crisp, the stamp seems to depict the bird above the swastika. Yes? No? Maybe?

 

[Remembering]

Yup, that'd be the barrel firing proof. Not sure if it's a poor strike or a worn stamp, jb should know.

 

[kjohn]

A bit better shot of the same stamp, plus one from the breech.

 

[CanadianAR]

That would be the BeschuBstempel, aka firing proof. The nazi style. Every K98k from 38 to 45 had at least 2 of these, usually 3.
Barrel, receiver, and bolt.

Later war bolt and barrel typically.