While this instrument looks like a solidbody guitar, it is in fact a semi-hollow instrument, as are most other Bigsby Spanish-neck guitars. While Bigsby is no longer with us to question on the subject, I suspect the semi-hollow construction was intended to reduce weight. The workmanship of this guitar is very fine and its design is extremely sophisticated, especially in view of the fact that Bigsby had virtually no other guitars of similar design to study or copy when he made his early instruments.
Bigsby was a guitar builder in the truest sense of the term. Today, many luthiers who construct solidbody guitars purchase pickups or wiring harnesses from manufacturers such as Seymour Duncan, DiMarzio, or EMG, and buy bridges, tailpieces, tuners, and virtually all other hardware. Paul Bigsby made his own pickups, bridges, and vibrato tailpieces such that virtually the only outsourced components on a Bigsby guitar are the tuners and tone and volume pots. While today it is possible to buy a solidbody guitar from a dozen or more makers with virtually the same sound and function, due to identical electronics and hardware, a Bigsby guitar offered the player a truly unique look, feel, sound, and function.
A gentleman is someone who knows how to play the banjo... but doesn't !