YYXXXXX (6-7 digits)
This is widely considered Gibson’s "Dark Ages" for serial numbers. During this period, the numbering system was inconsistently applied, and many numbers were duplicated or meaningless. serial numbers gibson
[Letter]-[Number]-[Number]-[Number]
Before diving into the numbers, locate the "Made in USA" stamp on the back of the headstock. YYXXXXX (6-7 digits) This is widely considered Gibson’s