Vintage Haviland china Bergere (blue cornflower floral) pattern, made for the famed homewares shop A Charme du Logis, Quimper, Brittany France. A very sought after pattern, and a little hard to find!
This is a large round cake plate or serving plate, about 12 1/2" in diameter. It's in excellent condition, I don't believe this was ever used.