the last 6 digits have nothing to do with year of manuf, they're the sequence number, the first part tells the year:
H = 1/2T
2 = 2nd series
55 = 1955
A = Atlanta plant
0[not o]53804 = 52,803rd truck made there
[all 55 2nd ser no's started at 001001 at each plant]
.... and I'd think a picture would suffice to prove it's pre-73!!!
Bill
