Epiphone acoustic serial number dating
1935-1937: Letter between the batch number and the order number. 0123 A5 1938-1941: Two or three letters before batch number. If there is a second character follows it is the code for the type of the instrument.(G = Gibson, K = Kalamazoo, W = Recording King (Montgomery Wards).It was also from 1970 "MADE IN USA" stamped on the back of the headstock.Some instruments from the fifties also had been such a stamp. The same confusing six-digit serial system of the sixties was maintained until 1975.Where to find the serial number The serial number is stamped or punched on the back of the headstock or acoustic in the sound hole.
Note: The factories identified by the codes above are based on patterns which users have observed.Therefore, the production in 1959 may be a "1", "2" or "3" in the second digit.Gibson stopped the stamped serial numbers at the end in 1960, although there are a few guitars made in 1961 with a "1" as a prefix.When a six-digit serial number is concerned, there is no space, because the highest number in four digits (9999) has been exceeded and so fills the space. In 1955, Gibson forgot to put back the serial number range to 0001. For this reason, the array of four-digit serial number was exceeded after 9999.Thence 5 digits and no space between the year (5) and the serial number.