Question: Who was the Master Engraver??

[harleyman5mike]

Can anyone out there identify who the engraver was for this 1960 Winchester Model 70?? It looks like the engraver stamped the rifle on the left rear side of the barrel with their initials inside of an oval. There is a "P", a sideways "M" and a sideways "T" combined. It looks like they tried to stamp the front of the receiver but it did not work. Thanks, Mike

 

[FANCYGUN]

The letter stamps in the oval are Winchester proof marks WINCHESTER PROOF

 

[Flatsguide]

Yes, Winchester Proof

 

[SamW]

Perhaps Arnold Griebel?