This links to an article of descriptions of fancy dress from Harper's Bazar, 1869 - although this image is not from that issue.

Fancy dress costumes for a Victorian fancy dress party, featuring fancy dress costume ideas, materials, masks, costs and rental fees.

Worth Gown for Victorian Masquerade Ball  Source :

Why yes, I would like to be in a crazy designer Cleopatra costume. How did Halloween become so cheap when it was once so lovely? Lady Paget in Cleopatra fancy dress by Worth, 1897