In the 40s and 50s, there were a lot of independent motor oil manufacturers. This is one of the coolest ones I've found. It is a mahogany tone-chambered body with a set 3-piece mahogany neck. I cut the lettering out of the middle of the circle and made a light box. The "Gauge" glows when the tone knob is pulled up. The Rio Grande pickups are wired to be split so it is a very versatile guitar! ***CLICK THE GUITAR FOR MORE PHOTOS***