LIMOGE Set of Two -Heart & Box, Vintage, Pristine Condition, Hand Painted

I purchased these in Paris, France about 25 years ago. They both say “Ancienne Maufacture Royale Limoges” on them. In perfect condition. I wonder what that is painted inside the little box? The heart measures 2 1/2” L x 2 1/8” W x 1/2” D The box is 1 1/2” L x 1 1/4” H x 1 1/4” D Let me know if you need two gift boxes. From non-smoking, pet free home.