The website these pictures came from (here) describes it as a "c. 1920's Boudoir Cloche Cap of Lace with Light Yellow Silk Ribbons." It is so pretty. And it is a brilliant design, I think, with the lace bands held together by the ribbons, and the really cool effect the ribbons make on the side of the hat. Apparently it is on the large side, so probably meant to be worn over a hairstyle. If I had more use for such a thing, I would make a reproduction in a heartbeat. Unfortunately, I think ballgowns are just more useful for me. But it sure is lovely to look at.