Antique JAPANESE WOODBLOCK Woodcut DIVING MALLARD KOSON OHARA. Antique JAPANESE WOODBLOCK Woodcut DIVING MALLARD KOSON OHARA Medium: Woodblock. Dimensions: approx image 210mm x 210mm; including mount 310mm x 305mm. Condition: Yellowing and foxing. Wear commensurate with age. Notes: Fantastic Japanese woodblock unframed. More similar items available – please. Auctiva offers Free Image Hosting and Editing. […]