D and 3 together, normally the numeral is above the letter, indicates 3-blade Damascus. Grade 2 flats were not marked with the grade number. That started with Grade 3.
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"I'm a Setter man.
Not because I think they're better than the other breeds,
but because I'm a romantic - stuck on tradition - and to me, a Setter just "belongs" in the grouse picture."
George King, "That's Ruff", 2010 - a timeless classic.
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