To all who have responded to my post
Thank you for all your response in providing links to a possible site...unfortunately some of the links do not work any longer. But I did find jitterbuzz helpful.... a lot of information regarding the history of this roaster. They don't make appliances like...
I am looking for a replacement knob for a Vintage Westinghouse Roaster Temp Knob model: RO-91. The knob is made of glass. The one I had broke at the shaft. It has been a great roaster. Hoping someone can steer to someone who is selling one or a company that carries vintage parts. Thank You.