Dating fender instruments
Fender ceased production of 5B6 Bassman amplifiers during the spring of 1954.During November 1954, Fender introduced the newly designed 5D6 Bassman amplifier offering four ten inch speakers and was designed utilizing two rectifier tubes. Most notably, PRODUCTION DATES have been penciled or stamped on the butt end of the heel of the neck of most guitars and basses, although there were periods when this was not consistently done (1973 to 1981, for example) or simply omitted. instrument production history, PRODUCTION DATES have been applied to various components.The 5D6 was a major departure from the earlier 5B6 Fender Bassman model.Designed by Freddie Tavares, longtime R&D man at Fender, Instead of the single 15" speaker, four 10" Jensen Alnico P10R speakers were used.In contrast, all Japanese reissues had the headstock decal underneath the finish.Neck dating protocol went through many changes throughout the years.
Besides being a popular and important amplifier in its own right, the Bassman also became the foundation on which Marshall and other companies built their high-gain tube amplifiers.
In March 1985, CBS sold Fender to a group of private investors.
The serial numbers do not reflect this change - Fender continued to make instruments using existing serial number schemes.
2007 was another transitional year for Japanese-made Fender instruments, with the return to the “Made in Japan” country-of-origin identifier on the serial number decal.
This was a running change, and both “Made in Japan” and “Crafted in Japan” decals appear on instruments from 20.