Here are some chamber engraving photos :
First one on a gun sold by Ralph Shattuck in the past year or two :
Second one on a gun sold by Charlie Kenyon in the past year or so :
Third one sold by Ralph Shattuck about 3.5 years ago (marketed by the Greg Martin auction house) :
Fourth one sold by Shattuck through the Phoenix Investment Arms outlet in the past 2 years :
Fifth one a book photo scan of a Mexican presentation carbine chamber engraving :
