They will help you place an approximate date on your guitar as well as telling you what model of guitar you have. Placing one of these designations on an older Martin guitar can be difficult, but as long as you have some idea, you can better ascertain the value of your guitar.Ĭontact Martin directly via their website if you have a guitar you think may be manufactured before 1898 (see Resources). The common size designations are O, OO, OOO, OM and D, from small to large. They have an easy-to-read chart telling you when your guitar was manufactured. Visit Martins website and date your guitar (if you have found the serial number). New York and guitars made from 1898 onwards read C.F. Martin New York, guitars manufactured between 18 have the brand listed as C.F.

The original Martins had a label that read Martin and Coupa, instruments made between 18 have the brand listed as C.F. Read the paper label on the inside of your guitar if you have yet to find a serial number. Sigma Guitars S Serial Numbers Placed HereĪs with the headstock, serial numbers placed here often wear away.

Unfortunately, this is an area of higher wear than the inside of the sound hole, so it is possible that the serial number has been worn off if it is not present.Ĭheck the neck joint at the back of the guitar for a serial number if none can be found elsewhere. Martin guitars manufactured between 18 often have the serial number stamped on the headstock. Sigma Guitars S Serial Number Of Your Sigma Guitars S Serial Number OfĬheck the back of the headstock for a four or five digit serial number. Sigma Guitars S Serial Numbers Placed Here.

Sigma guitars serial numbers