Hmmm, it's a guess, but I'll go with Musket & Flintlock Ball Maker. There seems to be some sorta metallic grey residue on the inside, perhaps a result of the lead in the balls, if you'll excuse the expression!
I've changed my mind! I think you have a bottle at one end, the cork in the widget, then the squasher thingy pushes the cork through the hole and into the bottle.Yep, it's a Bottle Corker! Final Answer!Susie Oh no it won't let me change my answer ... shucks!!