Dater ma guitare.

Citation : Epiphone:

Most regular production models since ca. 1993. Many '80s and early '90s serial numbers may follow a similar scheme, but may not include a factory ID code.
FYYMMRRRR
F= Factory code (this can be 2 letters as well)
YY= year of manufacture (this can also be just 1 digit for '90s models)
MM= month of manufacture
R= ranking number (may be more or less digits, not necessarily indicative of total units produced)
Example - S02021234 was issued in Feb. 2002.

Another code used on some current Epiphone models
FYYMRRRR
F= Factory code
YY=Year of manufacture
M= This will be a letter code corresponding to the month (A=January, B=February, etc...)
RRRR= ranking number
Example - R03D0263 was issued in April 2003.

Epiphone Elite/Elitist models
FYSSSS
F= Factory Code (this code will be an "F" or "T")
Y= Year of manufacture (2 = 2002, 3 = 2003, etc.)
SSSS= Sequential Serial Number
Example - T41234 is a 2004 Elitist model.