Inspired by Customline's Customline (link in the link for those of you who don't remember a 2011 post), and after more time web-surfing than wise, we've bought a Customline oven (and the cooktop that was part of the deal). The oven appears to have the rotisserie and the meat probe thermometer!
I haven't seen them in person yet -- we'll have to wait until Thanksgiving when we head north. (We got our brother-in-law to do the pick up.) I have spent a lot of time looking at the blurry photos on fb Marketplace. I think that it's a 1957, or possibly a 1956? (But were there windows in 1956 Customline ovens? All the 1956 ads I've found were window-less. The handle is above the nameplate, which is above the window. The cooktop controls look more like a 1957 than a 1956, based on the advertisements. By 1958, the ads show the handle right next to the window, with the flying H underneath the oven.) Advertising from 1956, 1957, and 1958 as photos 8-11.
I haven't found a way to translate the catalog number, which is probably 20RJJ11, into a year.
Anyway, I'm excited to think about next steps!
Lisa C