I ordered new knobs with lettering on them. AppliancePartsPros.com enabled me to order the correct knobs by putting in the model number of the stove and by showing closeup pictures of the front and back of the knobs. For example, one out the the 4 knobs was for the simmer burner. I was given this information and that knob has "simmer" on it while the other 3 don't. On the down side the burner knobs cost nearly $100 to replace. I am hoping that their quality is such that they will last a few years. I also feel the expenditure was worth a good bit because it makes it safer to operate the burners - especially when used by people who are unfamiliar with operating a gas burner and the fact that there is a "light" step to turning on the burner.