Dating epiphone serial numbers
A few bolt on neck instruments had a date ink stamped on the heel area.
This system is useful in helping to date and authenticate instruments.
The numbers 001-499 show Kalamazoo production, 500-999 show Nashville production. 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.
The production numbers run in a consecutive order and, aside from a few oddities in the change over years (1961-1962), it is fairly accurate to use them when identifying solid body instruments produced between 19.
Examples of this system: 4 2205 = 1954 614562 = 1956 In 1961 Gibson started a new serial number system that covered all instrument lines.