This electric guitar was modified in the early 60s by a young lady who inherited a spiral brass Spirit Cylinder from her Father. Spirit Cylinders are containers for "thoughts left behind" by souls who have departed and no longer need them. At least that's what merchants told her Father in the Moroccan bazaar where he purchased it. He perished a short time later. The daughter was a struggling musician in Southern California and paid some electric guitar tech guru $100 to hook the Spirit Cylinder to her bridge pickup. She then pawned the guitar and ran away with an AWOL sailor to live with gypsies in Hungary. It's not known if she ever had nerve enough to play the guitar after the modification. I won't do it . . . perhaps you'd like to try.