MIRIAM HASKELL WWII Era 1940s Blue Pearlized Seashell Flower Glass Bead Brooch

-Rare piece from WWll era.
-Excellent vintage condition.
-Unsigned, but attributed to Miriam Haskell per:
-Similar shell brooch on page 152 from the book Miriam Haskell Jewelry by Cathy Gordon and Sheila Pamtiloft (see 2nd to last photo). That item was also unsigned, as pieces were not signed until the late 1940s.
-Use of small, translucent colored glass beads as featured in many other Haskell pieces.
-Natural clam seashells flower petals with iridescent and pearlized coatings.
-Shells and beads are hand wired into the center and onto a pierced plastic plate back.
The shortage of metal during World War I| meant substituting metal backs with a pierced plastic back with the similar regularly placed holes. (See last photo.)
-Metal C clasp.
-Approximately 3 .