This is my personal Bartell 12-string guitar.  I purchased it on ebay a couple of years ago but at the time it was missing the bridge and tailpiece.  Using various pics found on the web and sent to me by other owners, I was able to have a reproduction tailpiece made from stainless steel.  The bridge is a modified Bigsby aluminum bridge.

The guitar is basically the same guitar as the Spyder with a 12-string neck.  It's branded "St. George XK12 by Bartell of California" and features individual switches for the pickups and a phase switch along with Volume and Tone controls.  It plays very well and has a full, rich sound.