If you wondered what they looked like when new

[ilan]

https://reverb.com/item/51988937

Cleanest Mustang I've ever seen.

[Rob]

Is that a Guild bridge?

[Dave W]

No, that's an original Mustang string thru body bridge.

Little Tokyo Guitars is the seller. I wonder if this is actually in their possession or of it's another one being fronted by a seller who doesn't own it.

[Alanko]

Fender used some seriously unstable pearloid on those basses. By the early '70s you find Comp Mustangs with 20+ pickguard screws from the factory, just to keep the things flat.

The D and A strings are perilously close to the height adjuster screws. There is something a bit suspect about the geometry of Mustang bass bridges. The bridge is a clear influence on the first Stingray bass bridge. Leo Fender took some ideas from the Stang to the Ray. For being a budget instrument the Mustang is richly appointed.

[ilan]

Fender used some seriously unstable pearloid on those basses. By the early '70s you find Comp Mustangs with 20+ pickguard screws from the factory, just to keep the things flat.

I don't think it was the factory. Some people added screws when the guards started to warp.

There is something a bit suspect about the geometry of Mustang bass bridges.

Not a big fan of string-thru-body. You need medium scale strings or the silk gets over the nut.