Epiphone acoustic serial number dating
The ranking number may consist of any number of digits.Note: The factories identified by the codes above are based on patterns which users have observed.(After 5 9999 came 510 000) Evidently the production was high in 1956 because "6 9999" is exceeded.
There are basically four distinct formats, also called identifiers, in which order serial numbers occur on Epiphone instruments.
In a random sequence numbers were stamped on the back of the headstock. In 1970, the orange labels in the body of acoustic guitars were replaced by white with orange rectangular labels.
The electrical models were provided with a rectangular with black and purple triangle.
For Japanese and refurbished models, which are special cases, see bottom.
Example: 08121520333 = 2008 / December / factory 15 / unit 20333 Note: Models from 2008 and onwards omit the factory ID letter prefix.