Gibson Serial Number ((top)) «No Ads»
I'll simplify: After 1977, 8-digit serial: First digit = last digit of year Digits 2-4 = day of year Digit 5 = last digit of year (must match digit 1) Digits 6-8 = production number.
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I'll simplify: After 1977, 8-digit serial: First digit = last digit of year Digits 2-4 = day of year Digit 5 = last digit of year (must match digit 1) Digits 6-8 = production number.
XXXXXX