Inexpensive, mass-produced masquerade costumes were available for mail order in the 1930s. This selection of costumes is from the Fall 1933 Sears catalog.
A gorgeous game themed masquerade dress from the early 1920s that was auctioned off on ebay a few years ago.
An 18th century themed masquerade costume based on the opera Manon, from Le Journal des Dames et des Modes, 1914.
A modern Edwardian take on Venetian fancy dress incorporating the recently introduced hobble skirt. From Le Journal des Dames et des Modes, 1913.