An unidentified Kewpie doll.

I have scoured the internet in search of the origin of this little 3 inch Kewpie doll. It appears to be bisque. Has a cold chalk-like texture. But the only making it has is on its lower back near the bottom. It appears to say “LOTA” and then under it is an “83” The eyes are not like the Kewpie dolls or their mass produced copies I’m finding on online sales sites. I would love any advise as to the origin of this little Thinker doll that you could give me. The paint is still pretty bright and clean to be from 1883. So maybe it’s 1983. Or maybe not. Any help you can give me will be much appreciated.