Here's a response that I got when questioned about the missing knob and dust... And "Tammi?, beats me!!!
Kosher? thats cute! I am going to take a closer look at this item. Maybe I chose the wrong word. I am having it checked out and will write a full report by tomarrow. So relax boys your questions will all be answered soon. Tammi check the listing for the answer to your ??? - nowthatsclever