I've had this machine for a while... Anyone know anything about it?

[Farapalap]

Hello! This is my first time visiting these forums.

I have been in possession of this machine for a few years now and have barely been able to scrape together a small bit of information that I can't even seem to locate the sources of anymore I have provided some pictures of the machine and I will now list what I know.

-It is a Nishijin machine
-It is 15&6 format (that seems to be strange?)
-It is from the Y&O line
-From what I remember, it was made for the 1998 Winter Olympics in Nagano Japan.

And that's about it Is there anything anyone can tell me about this machine? It would be super appreciated!

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