In 2018, he put 120 of the prints on display in Beijing for the first time. The exhibition"s scope ran from the 1850s, the very genesis of paper photographs in China, until the 1880s. It featured examples of the earliest forms of photography, such as albumen print, which uses egg whites to bind chemicals to paper, and the "wet plate" process, in which negatives were processed on glass plates in a portable dark room.