Scratch built football catcher

[treefrog]

Noticed this machine on eBay and at first assumed it was just a box, but someone has gone to a lot of effort trying to get a working catcher machine, even if crude.

I was trying to work out what the right handle arrangement is, as there is a pulley inside and missing a few things....quite like the field play, a little different

https://www.ebay.co.uk/itm/193961331018?ul_noapp=true