According to the newspaper article included in the photos this range has been restored. whoever restored it probably painted it red instead of staying period.
These were built in red, I have a customer with one and it is original, I believe this is more of a mid 50s range, I dough they were selling a red range right after WW2.
You could get a new Stainless steel DCS or WOLF professional style range with full size convection oven, flattop, charbroiler and commercial grade burners for less than that.
Whoever did the work cut a few corners. It kind of looks like the burners were just painted, or original porcelain. The broiler tray looks like it was hit with a wire wheel.
Chambers are the most difficult to restore. So much so that I have yet to do one all the way.
If that was 100% legit with a modern ignition system I would sell it for that much. Maybe more.