My stainless steel belling range cooker had the decals next to the knobs come off when I cleaned it with Cillit Bang. Had been in touch with Belling about sourcing some replacement transfers as oven temperature was now guesswork. They could not help, but now three years later have managed to buy some off ebay for £6.50! Result.
Have cleaned cooker from top to bottom and put on new decals- it looks like new. Very pleased with my purchase.