Who is depicted on this old button?

Any ideas?

 

In what part of the world was it found? And would/could you post a photograph of the reverse?

Debora

 

I almost want to say Marie Antoinette.

 

This button is supposed to be she, according to OP.

Debora

 

I'm curious about the little hand and forearm. Is there a child in the picture?

 

Wow, good eyes! Now that you got me looking, why is there a “fish?” past the end of the hand? ( feel free to disparage my vision )

 

From the hair, it does appear to be a woman. And Georgian or the equivalent period elsewhere. And... Ah! It's a little hand! I was puzzled. So perhaps taken from a portrait?

Debora

 

Rather than a little hand, it seems more likely that the form on her shoulder is a tendril of hair, decorated with beads as in this portrait of Marie Antoinette -

 

That makes much more sense! Thanks, 2manybooks!