I don't know about some places, but I would like to think that most yards would "notice" something like this. Personally, even if I were a theif, I don't think I could work up the courage to take something so obvious. But then again, that's why there's a tv series on people such as this. Officer: where did you get this manhole cover that's printed St. Louis, Mo? Suspect: It's my surname. An old family heirloom.