Fender tag decoding

[70b5bluerunner]

I am certain this has been asked plenty of times before, but how can I decode the fender tag on my 69 Coronet R/T? I think the build date code is "C26". Does that make any sense?

 

[65 Coronet]

This is for a 65, don't know if its the same. C26 on this chart would mean December 26, 1968...I think

Last row:
SQ left digit 1-9 (Jan-Sept) A-C (Oct - Dec) 1964. All w/ # 1-7 are built 1965. Right two digits are
date. Example SQ=B22 are Nov. 22 1964. Number=08065 factory invoice numbers.