10X,
I have never seen one of those in person or in a pic. That's a strange looking beast for sure. I don't know enough about the foreign made Singers so this is just my personal opinion.
It's either a Chinese or Indian made Singer, or a fake that someone's gone to extraordinary measures to convince people it's a Singer. Either way ... I like it.
The head looks like a 66 like you said and the rest a 15. Really cool.
Now, how does it sew?
Joe