I'd like to propose the use of the Alignment section to record coins that are uniface, like this one.
Technically, for uniface coins, the current alignment options don't quite apply.
Then there are the bracteate uniface coins. They have the incuse impression of the other side. So the alignment is always medal, but it's just a result of the minting process.
I propose we mark uniface coins as Uniface in the alignment and then we write either Blanc or Incuse and mirrored obverse in the description of the missing side
Best
strato