Japanese collectible doll/figurine, likely a ceramic or resin okimono-style figure of a child in a yukata. The wooden plaque next to it is important because it likely identifies the maker. The large characters appear to read:

芳山作 (Hōzan / Yoshiyama saku)

which means “Made by Hōzan (or Yoshiyama)”. The smaller characters beneath likely identify a workshop or kiln and include a red seal stamp, which is typical for Japanese artisan figurines.