Gibson les paul serial number dating
The Epiphone serial number decoder currently supports 12 serial number formats from 25 factories. Serial numbers from 70' and 80's era Epiphone guitars made in Japan are not supported.The reason for this is that there is no reliable documentation from this time period.in 1947 Gibson changed the serial number pattern and in 1954 went from white labels to orange labels.
Another thing to look for is whether the numbers are too close. The fake one on the right has no serial number at all. You can search for your serial number at The Guitar Dater Project.
Examples: 70108276 means the instrument was produced on Jan.