The remaining digits = number of individual instrument, probably.Models that are sold outside of the continental United States cannot be tracked using this serial number inquiry system.The following number determines the model: 5 or EG for the EG models, then the sequential number for that particular model.
Gretsch used several different serial number schemes through the years.
The year of manufacture is determined the same way for the EG models.
Like the CE models the serial number is located on the neck plate on the back of the guitar.
The Gretsch-GEAR database exists to get it right: to document the actual serial numbers, to determine once and for all what was built and when, and to harness the collective knowledge of thousands of Gretsch fans to put the pieces together.
If you'd like to learn more about Gretsch serial numbers, we highly recommend Ed Ball's "Gretsch 6120: The History of a Legendary Guitar." Ball is one of the key researchers who have determined the actual dates, years and features Gretsch serial numbers correspond to.