This exact plate is the Keito Fine China "Art of Chokin" Hummingbird & Floral Plate, explicitly backmarked with the Keito Japan Fine China logo. 

Identification & Details

• The Manufacturer: Keito is a prominent Japanese manufacturer that specialized in importing decorative collector plates, vanity items, and giftware featuring classic Japanese metallic art. 

• The Medium: This piece blends premium white fine china base material with a heavy outer ring of 24K gold trim. 

• The Art Style: The central medallion uses authentic Chokin engraving techniques. The design depicts a hummingbird approaching flowers, meticulously layered with thin gildings of copper and silver-toned metals to create a striking 3D effect

The estimated market value for this Keito Fine China "Art of Chokin" Hummingbird Plate typically ranges from $9 to $35 USD, depending heavily on the size of the plate and its overall condition.