The serial numbers on the first 22,238 NAA models were stamped on the left front
of the engine block just below the head as shown in the photo below.
FORD TRACTOR – NAA/JUBILEE –EARLY SERIAL NUMBER LOCATION:
Serial number location on later NAA models was on the left side of the transmission case just below the flat above the starter bulge as shown in the photo below.
FORD TRACTOR – NAA/JUBILEE –LATE SERIAL NUMBER LOCATION:
-From John Smith's archived info now at F/FCA.
Tim *PloughNman* Daley(MI)