Hello, those are some pretty cool pictures of the chassis of that Zenith TV, especially with the orange glow of the vacuum tubes-cool
I got a circa 1961 Zenith TV like this that's a 23-inch console I got 2 years ago with a channel selector knob just like on this Zenith here-it's also a VHF-only model. It's in a sort of a pecan-dark maple-like cabinet. It worked the last time I plugged it in. I got it at an old radio shop right here in Ontario.