can you post the link on CL ? I'm curious of the other picsI have never seen this. Looks like a Silver C.
I see the burner sits on top of the frame in your picture and I can't tell if it has its own igniter, so there may not be anything unusual with the burner. I replaced my burner with a table and the pictures are on the computer in the other room so I'm going from memory which might be a mistake at my age...