Wow! I don't know, but I want one.

It looks like some kind of miniature weapon or mad scientist's apparatus.

Not a clue but I see an old school Safeway bag.

First glance made me think gumball machine, for some reason

Something to do with detecting allergies? That's what a quick google seems to think.

I got there too but couldn't see the link. All a bit odd....

It's an Enlarger from a photographic darkroom. It's used to expose negatives onto photosensitive paper before developing. Looks ancient!

Thank you. It does look a little ancient doesn't it. I wonder if it's worth anything on eBay?

eheh. Now that you say that... it's sort of obvious. D'oh.