3 piece set of French provincial chairs?

I was told that these chairs were French Provincial and dated back to the 1800's. They have been in my great grandmother's attic for 80 years.
Are they worth any value? Are they French Provincial

Thanks in advance
RustyAttachment 11659Attachment 11658Attachment 11657

You would have to check with an Antique shop, they do appear to be fairly old.