My mother bought a used gas range Tappan Self Cleaning Oven and the model number on it has completely faded. She -really- needs to order a manual from the people that own Tappan so she can figure out how to use the oven. I've provided a picture of the electronic controls of the oven in hopes that someone who might also own/have owned it can give me a model number/advice on how the oven is supposed to work. Please help!