During the period from 1975-1977 Gibson used a transfer that had eight digit numbers, the first two indicate the year, 99=1975, 00=1976 and 06=1977, the following six digits are in the 100000 to 200000.
MADE IN USA were also included on the transfer and some models had LIMITED EDITION also applied.
A few bolt on neck instruments had a date ink stamped onthe heel area.
In 1977, Gibson first introduced the serialization methodthat is in practice today.
These instruments are the only ones that correspond to the standard post-1977 Gibson serialization.
These neck plates are smooth flat neck plateswith no "Neptune, N. Keep in mind that just because the neckplate is imprinted with "Kramer, Neptune, NJ" does NOT mean that the guitar was Made in the USA or an "American" series.Finally, ifyour Kramer came with a Floyd Rose II, Floyd Rose with no fine tuners, or a Floyd Rose unit that does not require the ball ends of the strings to be cut off, it is an overseas model.