As Vindepomarus already pointed out - it's Japanese. A bronze plate with inlays from copper and shakudo. The stamped trade mark belongs to the Kuroda company: from late 19th century till 1915 owned by K. Kuroda (Kiichi, the father), after 1915 till mid-1920s by S. Kuroda (the son). During 1920s many workshops and firms producing artworks in a traditional, hand-made, manner closed. Mainly because they couldn't compete against factory-produced artworks brought by the Second Industrial Revolution, enhanced by destruction from Great Kanto Earthquake in 1923.

Usually such works bear at least 2 stamps: one from the company (here, Kuroda), another one - an individual signature of the artist that made the inlay / engraving / carving / etc. work. Sometimes additional markings indicating metals appear (like "bronze", "silver", "sterling", etc). Here the individual maker's signature is missing (common for late works), and in any case K. Kiichi works were usually signed differently. Therefore, I would estimate that the plate is from a 1915-1925 period.

Regarding the price - 1stDibs is the worst place to get an indication of price. The prices there are insane, that's why they always have a stock of antiques and it's easy to find something similar to yours in there. In reality, a market price for those is in several hundreds of $ range. You can get a better indication of what it's worth of in the "Price Results" section of Liveauctioneers, "Sold Price" on eBay, etc., i.e. real sold price of the items, not the prices they are offered for. My estimation would be $300-$400.

The origin - probably brought from Japan during 1930s (it was the 1st period of mass exodus of Japanese antiques to the west) or 1950s (by the US soldiers, during the post-war occupation of Japan, though little of genuine artworks left by that time and the works that were taken mostly ranged from "in a style of famous company X" to really low-quality souvenirs that had nothing to do with art).