It's 80 bass, nearly 3 octaves G -E but full size keys so it feels big compared to my Weltmeister. No switches.
When you press the top row buttons you often get a chord. And the right hand keys often play more than one note. No top strap to hold the bellows closed, just 2 holes, but theres less of a draft now I've stick tape over them.
Don't know how to put pictures here, but I've now managed to email some to a friend who says it wouldn't be worth the work needed to put it in order.

It has a very pretty front, like black fretwork with white bits on, but it has buckled, like receding gums, so that the black keys don't go all the way.

This is in England, I doubt if it's worth shipping. Not sure what the owner plans to do with it, I was asked what I thought of it, and I hadn't enough knowledge to back up my first reaction.