According to the seller this guitar was specially built and presented to Pat Martino by the late guitar maker Taku Sakashta in Japan, presumably before the latter's fateful move to the US.
This 'hollowed-out solidbody' construction facilitates more modern playing styles and amplified tones, resisting feedback at higher volumes, unlike a full-bodied archtop, while retaining some of the acoustic properties of a hollow instrument.
The hand-carved sides are beautifully rounded and flow seamlessly into the top, eliminating any square-edges on the body. I can only imagine what holding this guitar feels like!
As always do the necessary research before committing!