Godin serial number is stamped on the back of the headstock, and on acoustic models, it can be found on...
Samick serial number can be found on the back of the headstock or the neck plate, and on (semi) acoustic...
To find Höfner serial number, examine the back or the top edge of the guitar's headstock. For semi-hollow and acoustic...
In case the serial number of an electric guitar is absent, it is possible to date your guitar by checking...