Up for sale is a music master pickup dated
10-4-65. It is signed AY in the upper left corner.
AY means Abigail Ybarra oversaw the production of this pickup. Pickup measures 5.7 ohm. I believe the pickup is all original. The original leads have been spliced. The pickup was mounted in my -64 Stratocaster when I bought it. There is roughly 4 inches left of original leads.