Vintage Rare Fire King Blue Azurite Saucer Plates 2pc set

This is a 2pc set. Blue Azurite saucer plates are a light blue color. In good vintage condition. In the last photo it almost looks like a “c” in the plate. This is something that was made into the plate. I don’t know if this was intentional or an error but it looks neat. Approximately 5.5”x5.5”. **please feel free to make an offer, as I am trying to downsize my antique collection.