Include all digits. Note if it’s impressed (stamped into wood) or ink-stamped. Some numbers have a space or a letter prefix (like “CS” for Custom Shop).
If you’re spending over $1,000 on a used Gibson, pay a reputable luthier or appraisal service for 10 minutes of their time. They’ll spot things no online checker can. gibson guitar serial number checker
Remember: The serial number tells you when and where the guitar was made—but only your eyes, ears, and a trusted expert can tell you if it’s real. Include all digits