[betsycam]

I'm trying to help my parents find thermostat knobs for their old Maytag double oven which they got used with no manuals etc. The labeling is worn off on the upper/lower temp knobs. They recently had the ovens repaired, and the repairman couldn't retrieve the model number off the label because it was also worn. Doing a random search on parts websites is difficult without the model number, so I'm hoping someone can help, here, based on oven description, perhaps?

Is there anyone out there who could look at a picture and be able to figure out a year/model type where knobs worked for more than one model? The knobs are black with a silver rim and they have Broil at one end of the dial and Clean at the other.