Switch - SPDT (on/none/on)
Single-Pole Double-Throw (2-position) mini-toggle as used on Comanche and S-500 for pickup expansion and for coil-split on some models equipped with one full-size humbucker such as Legacy HB and Invader.
This is ALCO brand model 106D which is equivalent to C&K brand model 7101 or Multicomp 1MS1T1B5M1QE. These brands have been used by G&L over the years. Also fits Tribute Series Comanche, S-500 and Legacy HB.