The image is a page from a book titled "Burn-out Casting and Lost-wax Process". The page is written in black text on a beige background. The title of the book is written at the top of the page in Chinese characters. Below the title, there is a subtitle in English that reads "The molds of appendages for some late Shanghai bronze have been made of a material that would burn to ash in moldmaking. When the mold pieces were fired, the ash could be easily cleaned out of the mold. Such a technique might have been a forerunner of the lost wax process. In the process, the entire model is made of cast complicated elements such as three-dimensional openwork and deeply undercut or twisting parts. The earliest lost wax castings extant date from the Spring and Autumn period."