AD indicates a manufacturing date of March/1935
The other codes to the left of that core are service or repair dates as indicated by the 3.
.
__________________
"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.
|