MLA

Caracature [Sic] of Lady Sykes as She Appeared at a Ball at Hasting [Art Original]. 0AD. https://collections.library.yale.edu/catalog/10971323.

APA, 6th edition

Caracature [sic] of Lady Sykes as she appeared at a ball at Hasting [art original]. (0 C.E.). [Watercolors British 19th century, Ink drawings British 19th century, Watermarks (Paper)]. https://collections.library.yale.edu/catalog/10971323.