This item is a 
vintage, hand-painted Nippon porcelain open salt cellar or nut dish. These small bowls are typically part of a set and are characterized by delicate floral patterns and gold accents, often dating back to the late 19th or early 20th century. 
Key Details
  • Origin: Made in Japan during the "Nippon Era" (1891–1921), a period when items exported from Japan were required to be marked with the word "Nippon".
  • Design: The dish features a hand-painted floral design with pink, yellow, and green hues, and a gold-trimmed rim.
  • Use: Often used as individual salt cellars (open salts) or small nut/condiment dishes.
  • Value: These pieces are collectible antiques and their value can vary based on condition, specific markings (like the "M in Wreath" mark), and intricacy of the hand-painted details.