Yes I asked questions....See reply below
Hi,
This one has no serial number, but that's not totally unheard of.
It's identified as Japanese by the routing in the pickup cavities having square holes for the pickup legs. This is a feature of Japanese Tokai only.
Also all hardware electronics are Japanese. The Pickups have the metal braided wire which Korean ones don't.
This is definitely Japanese Tokai.
As for the Serial Number, I can't explain why there isn't one .. just isn't. Sometimes the way.
Dated from the Truss Rod Cover which came in just a little while before 2001. The LS-60 & lower models stopped being made in Japan after 2001. This one could be a little earlier, but not much