It was very interesting and fun working on this range, I was a bit nervous having not worked with many gas ranges before but once I got into it, it was fairly simple how things were put together. I was lucky with this particular range, it wasn't too greasy and nasty, but the other one I had for parts was disgusting! The bulk of my time was spent disassembling and cleaning parts. I highly recommend the vintage range valve cream from antiquestoves.com, it makes the valves like new again.
Louis, there is a burner under the deep-well cooker in the back left corner. The well cavity is tightly insulated above the burner level and there is an opening at the back of the range for air. The deep well is quite interesting as well, they use a self-lighting "low burner", like a pilot, under the pan as well as the standard burner for cooking. When you are finished cooking with the regular burner, you can set the knob for "lo" and keep the contents of the pan warm as long as you like.
The knobs on the top are just like knobs on the front of a range, turn right for on, back to center for off. They are quite handy to have at that level and since they're in the center of the top, you don't burn the hair off your arms reaching over. Maytag did not make this range, it was sourced from a range company in Indiana. I think something happened to this company because around the late 50's, all mention of the ranges was gone from the service updates from Maytag and they were no longer advertised. I in the early 60's, the Maytag service dept. began begging for parts that dealers may have had on hand to be sent back to the factory.
Thanks for the offer of service literature, Jimmy, I was lucky to find some on ebay for the ranges which was very helpful.