→ https://www.gibson.com/en-US/support/serial-number-search
: The instrument's place in that year's production sequence. 3. Historic '60s Reissues (Impressed) gibson cs serial number lookup
: The last digit of the production year (e.g., "1" could be 2001, 2011, or 2021). → https://www
: The sequential production rank for that year. "1" could be 2001
Used for 1952–1960 reissues (Les Pauls, Explorers, Flying Vs). These use a format designed to look like original 1950s serials. M YRRR or M YRRRR M: The model year being reissued. 7 = 1957 Reissue 8 = 1958 Reissue 9 = 1959 Reissue