This is a black fan with a Chinese inscription in red ink. It is signed by Fu Ssu-nien [Fu Sinian 傅斯年] to Joseph Needham. The Chinese text is a quotation from the Laozi 老子. There is also a small label stuck on the paper inside the right hand side bamboo handle, but is too faint to read the characters. It is not dated, but likely early 1943, see Science Outpost early letters. It has the maker's trademark on the back 寳元通鋻製. It is not dated, but likely early 1943, see Science Outpost early letters.