
The Polaris White one is a 1961 EMS-1235 with a regular six-string neck and an octave six-string neck, and its most interesting and unusual feature is the Bigsby on the octave side.
Gibson made these with Venetian and Florentine cutaways, but this one is Venetian. It is a hollow-bodied guitar with a carved spruce top and a flat back, and all three pickups are [Patent Applied For units]. There’s a single layer of white celluloid binding on the back and white/black/white around the top.