Date-coded serial numbers are typically found stamped on the back or top of the headstock, and "Made in USA" is stamped next to the number starting in June 1967. The next digit = last digit of the year (1966 to 1972: 6,7,8,9,0,1,2).
The remaining digits = number of individual instrument, probably.
Where to find the serial number The serial numbers on the guitar are provided through the years on various places.
Although a serial number is helpful for roughly determining the age of a guitar, this is often not the exact date.
Although neck-through production never surpassed approximately 2200 guitars a year, as the '80s progressed, the serial numbers continued to get ahead of the actual year. These do not follow the same XXYYY dating scheme as the neck thru models.
If a guitar has a number of 89321, for example, it was probably built in 1987, but it could have been assembled a bit earlier or later than 1987. The serial numbers are a bit hard to date because there was no uniform way they were assigned a number at Bernie's original shop.
Originally published on uk Mon March 13, 2006 Dating B. Rich neck-through guitars is relatively easy, although slightly imprecise by the 1980's. These consecutive numbers ran up to between 340 and 360. Throughout the '70s, production numbers were low enough that the serial numbers pretty much reflect the year of manufacture.
Rich guitar was stamped 'Proto', and subsequent guitars were consecutively numbered beginning 001, 002, 003, etc. That would make the first guitar of 1974 to have been numbered 74000, followed by 74001, 74002, 74003, etc.