Steven & serial numbers...
As the old tuna commercial went: "Sorry, Charlie."
Actually, since the Heritage until the present, the serial numbers are read this way:
EXAMPLE ~~~~~ 2841021584 ~~~~~ EXAMPLE
(This example means: 21,584th machine to be made in October of 1984 in Andrews, TX.)
1st digit is the plant,
2nd & 3rd digit is the year,
4th & 5th digit is the month, &
the last 5 digits represent what number in production for that month & year.
Cheers & hagn all,
Bill