Hans- so nice that you came
to visit.
QUOTE: The "Safetee" knob. My guess is that it locks all of the front panel controls out, so your 2-year-old can't turn a burner on while you're not looking.
My aunt had a 1950's gas rage that came with a house she bought in the 1970's.
It was a gas 40" wide range with a waist-high broiler on the left, and an oven on the right.
The "SAFE-T-KEY" looked like any other gas knob in the front of the stove. It was an actual removable key (with a a knob) that cut of all gas to the range and was removable.
The stove was kicked to the curb to become a Toyota when it popped a pipe and began leaking gas. So they say. I'm not sure I buy it.
On gas stoves the control knobs, in this country, tend to be in the front for safety. No sleeves dangling in flames. On electric stoves they tend to be up high in the rear on the backsplash, again for safety, to be out-of-reach of children. All knobs have been required to be push-to-turn for decades, again for safety.
Methinks the oven heating element can be anything as long as it fits (especially the holes to get the wires/terminals out of the oven) and is of simlar wattage.