rear brake drum

Well Im now finishing up the rear suspension on my 47 KB1. Im up to the rear brakes so its time to address the drums. First, both sides have different drums. RH is p/n 9289 while lh is p/n 1117. Im assuming one was a replacement at some time eventhough both are still swedged to the hubs. Second, the rh drum has a couple of "cuts" in the face where the nubs are, and one along the edge. Can anybody advise which drum is actually correct for a 47 and more importantly, should I be concerned about the "cuts" in the face of the rh drum? Much thanks! Allen