Does anyone recognize this ranch item? I think it might be some sort of water tank, maybe? It’s got heavy concrete blocks, like a double-hung window, to lift the lid. But I’m not sure what it was called or what it was designed to do. This is located on a Northern Calif. ranch and probably dates from the 1900s (ranch was abandoned in 1971, but there’s no telling when this equipment was in use). Thanks for any insights!