Late 19th-century Chinese calligraphy brush. From the brush's description on artsmia.org: "In Chinese literati culture, the brush, a writing implement, is known as one of the 'four treasures of the study' along with the inkstick, inkstone, and paper." More information about the brush here: https://collections.artsmia.org/art/118672/calligraphy-brush-china Scanned with about 40 100-megapixel photos; model built in Photoscan.