All images and text copyrighted and property of Greg Gagliano.

Leo Fender's first locking mechanism was designed for the Fender Jaguar and Jazzmaster. It could be used to prevent the vibrato tail from moving backward (thus pulling the strings tight
and making their pitch go sharp) if a string broke. It didn't work well and nobody used it, but it was a good idea. Enter Leo's second vibrato lock circa 1988. The idea is the same, but the
mechanism is stupidly simple. As shown in the photo, the lock is a simple tab that is rotated so it sits under the bridge plate. The problem is that it, too, doesn't work perfectly, though it is way better
than the Jag/Jmaster gizmo. The Vibrato Bridge Lock, as it was called, was a $20 option an any G&L with a Dual Fulcrum vibrato tailpiece. It is a simple cast zinc unit embossed with
"by Leo Fender" and "Pat. Pend."