Cuckoo Clock

My great-uncle Papa Joe gave John and I this clock for a wedding gift. I love cuckoo clocks and was very happy to have it. We had to get it fixed up a little, but now it is firmly affixed to the wall of our living room. (John spent at least an hour looking for a stud. He finally found something behind the wall in this corner - though it does not appear to be a vertical beam. I know this sounds crazy - but I'm pretty much convinced there are no studs in our walls.)