When Barker died in 1991, after making somewhere between 105 and 120 instruments, only a handful of his creations were seven-string guitars and only one of those handfuls were a seven-string with an 18-inch body.

Barker’s headstock, with a slightly longer bass side, shows an Albanus influence, but curiously, Barker chose to put the extra tuner on this seven-string guitar on the treble side.