NOTE - Gibson USA goes to a 9 digit serial number in early July 2005. In 1960, Epiphone's production moved to the Gibson plant in Kalamazoo, Michigan. These labels say 'Made in Tawain' in the bottom right corner. These labels say 'Union Made' in the lower left corner and are sometimes hand-stamped with 'Made in Japan' at the bottom. or find it in explanation about the dating system below. The sixth number is now a batch number- batch 0 starts at the beginning of the day, and once we stamp 699, the batch number will change to 1. Terms & Conditions | Registered Trademarks, Gibson Electric Guitar Descriptions from the, Gibson Acoustic Guitar Descriptions from the. The serial number will generally be nine to 10 digits long, with the first being a letter. The block logo debuted after WWII and remains the face of the company. Example: T902123 = Terada / 1999 / February / unit 123 Privacy Policy | Anastasios Stathopoulos born in 1863, was a Greek luthier who started a mandolin and violin company in 1873 in Pellana, Greece. F/FF= Factory code (No factory designator for some 1993 and earlier models) 2. PPP = Production number, Example: 34123 = 1993 / SHERATON / unit 123 Some of the interim blue lables had neither the 'Union Made' nor 'Made in Japan' markings on them. This serial number guide will help you to figure it all out.