Would it be possible to search for all coins with “AA” in a mintage line Mint Letters field?
Results with just the Numista numbers of the coins one per line would be sufficient.
It's not possible through the standard interface, but could an admin or referee run a custom search against the database?
I expect that most of those results are Pobjoy mint coins and the AA should become PM and “Die letters AA” should be added to the mintage line comment. (And other lines with AB etc should also be fixed, but I expect it would be rare for a coin to have AB in the mint letters but not another row with AA.)
We have fixed a bunch, but I'm sure there are more.
