Hello randyj, welcome!!! Cool lookin dog Dude.

If you are like me you will find the world of pachi's very addicting. I started with one vintage pachinko, then I found this site and now i am up to 7 (going to refurbish and resell) and counting with one modern machine. I am thinking about getting my first pachislo as soon as I can clear it with da boss.

I will try and answer your question, I am also pretty new here and if I am speaking with authority on something I know nothing about, one of the wiser folk here will correct me.

With the older machines what you see is what you get. You have a Nishijin Super Deluxe. Judging by the color of the cabinet and the size of the glass it was probably made in the late sixties. As far as theme, I think you just pretty much guess by the symbols or graphics in the center. I can't really tell from your picture what those things are, small dogs maybe, or just none descript symbols?

Hope that helps and again welcome to the site!

Don't forget the search function and read the FAQ's they are full of great information.