Jing, ying, shu, jing, he points; 15th century Chinese
Licence: Public Domain Mark
Credit: Jing, ying, shu, jing, he points; 15th century Chinese. Wellcome Collection. Source: Wellcome Collection.
Licence: Public Domain Mark
Credit: Jing, ying, shu, jing, he points; 15th century Chinese. Wellcome Collection. Source: Wellcome Collection.