Classic French Deco parure

I have always assumed this quintessential Deco parure is French due to its barrel clasp and its flowing design, but there aren't any marks.

It is set with marcasites and accented with black and cream-colored enamel all set in rhodium. The center part of the bracelet is pierced metal and is 2" x 2 1/2". The earrings have a central onyx cabachon. The workmanship is really special!