1 Screw Truss Rod Covers

[Sigmania]

Fakai "Make In Korea". Closed "a". Pronounced "k". (top)
Tohai, "k" like an "h", weird "o", 6 digit unknown origin, SN 081168 (middle)
Tokai, 1981 LS100S MIJ (botttom)

http://www.tokaiforum.com/viewtopic.php?f=1&t=26749

http://www.tokaiforum.com/viewtopic.php?f=1&t=26241