No ID comes to mind. That said, our forefathers didn't make stuff for the heck of it, so at one time this did have a purpose. However, determining its purpose will be difficult, made even more so without clearer photos (with a size reference) and as much context as to where, how, etc it was found. If you can provide that info it would be great. Otherwise ask the Youtube subscriber. Also, do some research and post what was going on in the area years ago (i.e. farming?). All this info can help narrow down the purpose for it - but there is no guarantee it will ever be IDed.