: This process is the primary way to ensure a guitar is not a counterfeit. If the specs on the sheet (e.g., body color, pickup type) do not match the physical guitar, it may have been modified or could be a forgery. Serial Number Characteristics : The serial number is almost always located on the back of the headstock
: You may encounter serials starting with letters like "JS" , which often denote more recent builds or specific series. A Tool Against Forgery suhr guitar serial number lookup