Mystery Object

We had a wonderful time at our 40th - the new Textile Display is up (six months only), and The Shed is getting more and more like a display area every day.

We currently have this item up as a "Mystery Object". Take a Guess and lift the flap to see if you are correct.

Here are a few more clues:

I won't give the game away yet - so if anyone wants to have a go, and see if you are correct, leave a comment on here, or on the Flickr page.

Coincidentally - there is also one of these in the Maffra Sugarbeet Museum collection - and it has nothing to do with sugarbeet. So it raises the question - is there one in every museum in Australia???