Citation:
In 1977, Gibson first introduced the serialization method that is in practice today. This updated system
utilizes an impressed eight digit numbering scheme that covers both serializing and dating functions. The
pattern is as follows:
YDDDYPPP
YY is the production year
DDD is the day of the year
PPP is the plant designation and/or instrument rank.
The numbers 001-499 show Kalamazoo production, 500-999 show Nashville production. The Kalamazoo
numbers were discontinued in 1984.
When acoustic production began at the plant built in Bozeman, Montana (in 1989), the series' numbers
were reorganized. Bozeman instruments began using 001-299 designations and, in 1990, Nashville
instruments began using 300-999 designations. It should also be noted that the Nashville plant has not
reached the 900s since 1977, so these numbers have been reserved for prototypes. Examples:
70108276 means the instrument was produced on Jan.10, 1978, in Kalamazoo and was the 276th
instrument stamped that day.
