I don't know about that particular set, but many older TVs of '50s vintage had similar control arrangements. I had an Admiral 21" table model ('50s vintage, of course) in the early '70s that had its controls under a trap door on top of the set; as well, one of Admiral's small 17" portables in the '50s had top-mounted controls under the same type of trap door. However, I think Admiral was one of the few manufacturers (that I am aware of, anyhow) which used this kind of control arrangement. Also, I recall some Raytheon portables of that vintage had top-mounted controls (never saw one personally, but I once saw a Sams Photofact for a similar set).