I've traced the Tokai Square Holes back to late 70s Tokais up to the present and also to the late 70s Burnys that have a Tokai serial number and were made by Tokai and also to some of the Greco no serials that were made by Tokai and also to more recent 2007 Burnys that were made by Tokai and even to some (Martin) Sigmas that were made by Tokai in the 70s.
It's amazing to think that Tokai Japan are currently using the same routers that they were using in the late 70s.
Tokai pickup routing holes and diagonal wiring channel.


Greco no serial EGC-75 pickup routing holes and diagonal wiring channel.


Fret edge binding


No serial

