Welcome to the new PGCA Forum! As well, since it
is new - please read the following:
This is a new forum - so you must REGISTER to this Forum before posting;
If you are not a PGCA Member, we do not allow posts selling, offering or brokering firearms and/or parts; and You MUST REGISTER your REAL FIRST and LAST NAME as your login name.
To register: Click here..................
If you are registered to the forum and keep getting logged
out: Please
Click Here...
Actually, beginning with the Grade 5 or B Grade the barrel flats are often - but not always - stamped with a DD (likely indicative of "finest Damascus") rather than a single D and the grade numeral stamp of 6, in this case, is normally stamped closer to the breech end of the flats.