Is this a Mask of St. Joan of Arc?

Unknown-Mask-Joan-of-Arc

Doug says:

This mask came into my collection, and is said to be Joan d’Arc. Would you have any idea, or where I may find out? I have been told it is a religious saint by the ring around the face, and the stars. Also, pictures of Joan I have seen look very similar. Also she has a very Norman nose shape. Also, the face is of a small person. Maybe 5 foot or 5’2"? Of course she was burned at the stake, so…..life mask?”

Doug also informs me that it’s made of plaster or high fire clay, has gold leaf coverings, and some “ancient markings” on the rear.

Now, as far as I know, the only portrait which St. Joan is known to have sat for has been thought to be lost or destroyed. Most paintings and sculptures in existence are (very liberal) artistic interpretations of what she might have looked like. So, what do you think, folks? Is it an actual likeness of St. Joan, or is it some other religious figure?

Check out more pictures of the mask on my Flickr photostream.