This satin bonnet features a lace trim. Due to its style and color, it may have been worn during a period of mourning, however, the trend of wearing black clothing for mourning did not start until the passing of Queen Victoria's husband in 1861. In early and mid 19th century middle-class women often owned at least two bonnets: one for warmer weather, usually made of straw, and one for colder weather such as this one. Bonnets for cold weather were usually made of heavier fabric and could also be quilted to help keep warm. This bonnet is an excellent example of what style of hat women may have worn during the colder months in the 1850s.