Am I counting right ? There are 5 strings ? If someone has information about this guitar, we’re interested to hear it !
Update : This Gibson guitar is not a guitar ! Duh ! This is a 5-strings Mandolin. Most probably one of the two prototypes of the Rock ‘n’ Roll Madolin Natural Korina built in 1993 by Robert Giffin at the Gibson Custom Shop for Maestro Alex Gregory.