I have an EB-3 that I purchased new in about 1972. The serial number is 930644. Walnut finish, slotted headstock, "Made in USA" below the serial number on the back of the headstock, glued-on raised pearl "Gibson" logo with no dot on the "i." From everything I've read the slotted headstock EB-3s ran from late 1969 through about 1971. I'm trying to find the exact vintage if possible. I was in 11th grade and didn't make note of the model year. Thanks!