Vintage Set 12 Snail Pot Escargot Shells White Porcelain, French Cooking, Boxed

Vintage NOS Ceramic Snail Pot, Escargot Shells, Set 12 individual pots for French Cooking in their (two boxes of twelve each) original boxes from Japan. The label says No. AA410 1 DOZ Made in Japan. Each pot measures approximately 2" x 1.5" x 1.25". These were acquire from an estate in Portland, OR. They all look to be in unused condition. Please see pics.