Vintage X-500 question

[hansmoust]

It's probably got an extra hole both above and below the Schallers, since they have the mounting tabs coming off to the side.

Not necessarily, cause it depends on what version of the M-6 Schallers he has, but that's not what I would like to know! I'm interested in knowing about the hole above!

Sincerely,

Hans Moust
www.guitarsgalore.nl

[Brian H.]

Thanks Hans! Here is some pictures of the tuners and the screw holes.
9EA0E510-D04E-4297-9DAE-7BE3E5A3FD41.jpg268CE569-AA80-47C6-96FB-457399292608.jpg

[swiveltung]

GB = "George Benson" ? !