Thanks for the replies and interest guys. It's obviously not a pinball machine in the strict sense, but I had to make some connection to justify the post here on aussiepinball, and a poll seemed a good idea  :)

It is a fascinating game, and I am looking forward to cleaning it up and setting the girls loose on it. The four year old immediately pointed out the crocodile and reminded me of my nightly "See you later alligator" goodbye, and the six year old made the connection of the Windmill to Grandma (my mother, who is Dutch), and all three (yes, including Grandma! - believe it or not she has a pinball machine at home and plays it every day) were keen to try their hand at it. It's got some entertaining speech, and it is kinda cute when you take a shot and make it - was a bit of cheering from the girls when I made the first hole!

Given the interest here, I'll post some cleaning up shots in a couple of weeks when I get it to the new house.