Geno, I've personally benifitted from your knowledge and experience on several occasions. You identified a 20b hammer gun for me a couple of years ago. Tula gun Pre-war Toz-B if my memory serves me correctly. I wrote down the info you provided and keep it in the case with the old girl. That will keep my kids from having to start over with the research when the Good Lord calls me home to the great pheasant field in the sky. Thanks again for your Russian perspective and knowledge.