Thanks Tom. So even though I don't remember it, up until sometime in 60's or 70's, my mom's '49 Commodore had a cover over its open coil bake element, the cover was integrated with the element assembly, so when that element burned out or broke, the cover went with it and the replacement sealed rod didn't require a cover. Definitely a better system with the sealed rod than the open coils.
As far as I know, the original open coil broil element in the Commodore is still functioning. Greg hasn't advised me of its failure. I presume that element would be replaced by a sealed rod if necessary, correct?