Vintage decor table top clock shops untested

Product Name: Vintage decor table top clock shops untested
This is a beautiful piece of art. For those who know clocks this could be an easy fix. It has a few flaws as pictured but still a stunning piece... Purchased years ago for 30 dollars and trying to get the same for it plus the 15 shipping I am adding on top of the price as I offer free shipping through Mercari. Like I said it is untested as I see know where to put batteries in it I am assuming it is a key brand through the hole as shown. Or ad marbles shops to the back and you it as a corner decor table piece of a key cannot be found for it.