Thanks, Jim.
They definitely created confusion by simultaneously using FON's and then "lettered" Serial #'s (in 1947.) It requires a some mental gymnastics (and getting used to the "system.")
- Am I understanding this correctly ?
"Quick Overview: Serial Number/FON Identification by Era." ...and the statement:
"1947-1952: Factory Order Numbers of 3 or 4 digits, followed by a hyphen, followed by by 1 or 2 more digits, ink stamped on the inside back."
-- (it would help to indicate that the "hypen" sometimes doesn't show up (or faded-out)... and looks like a "space.")
And, then further down the webpage...
"Gibson Factory Order Numbers, 1942 to 1951.
< text deleted for brevity >
Year Factory Order Number
---- --------------------
< 1941 - 1946 data deleted >
1947 700s to 1000s
1948 1100s to 3700s ('Script' logo no longer used, block logo used.)
1949 2000s
1950 3000s to 5000s
1951 6000s to 9000s <correlating my "9129" portion in this range ? >