Drew, we have a good set of various p diamond pics.I will post them and send them to you latter today.
We have noted an additional mark that we believe to be an accepance mark. All of the barrels that we have observed with the diamond on the forend lug, have a small cloverleaf shaped stamp on the left tube by the extractor rod.
We finally have some clear pics of this mark and will post them with the diamond marks.
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