Hi 119elmwood and welcome to the Forum.
Your guitar has a mix of pretty common Japanese guitar parts so a positive brand ID will be difficult.
That head stock shape is strongly associated with 1967 so I think we are in that era.
The pickups are perhaps the most distinguishing feature. Frank Meyers has associated these pickups with both Zenon and Heit Deluxe guitars. In his book, he says they were sourced from Meito. You can see his pickup examples here if you scroll a bit:
The truss rod decal is characteristic of Zenon but it does have a Teisco/Kawai style truss rod while most Zenon guitars lacked a truss rod. Unfortunately, little else distinguishes this guitar from other Japanese brands of the mid 1960's. The body shape and pick guard appear inspired by a Teisco MJ-2 and the Tremolo unit was used on Teisco's and Kawai's of the mid and later 1960's.
I haven't seen this mix of features before, but Frank might know what it is. At least, I bet he would be interested in taking a look at it.
You can contact Frank through his website Drowning in Guitars
Hope this information helps your quest
Let us know if you learn anything more about the guitar