Found It! What’s the Lost Item?

The space is a bit tight, so I started my usual trash cleanup♪ I threw out a ton of stuff~
Then I set the wheel down in a proper spot and hmm♪♪
Nice~ but wait~ this Marchesini that Nishimura painted… it doesn’t have a hub!
It’s gone~ it’s gone~ nowhere to be found~
I’m stumped~ I’m usually not one to lose things, but it’s definitely gone!
Man~ I’m really at a loss. This is truly sad~