Elli Souyioultzoglou-Seraïdari ( b.1899 - d.1998 (better known as Nelly’s) is one the most celebrated Greek photographers of all time, and during the interwar period became one of the world’s most celebrated female photographers. Her pictures of ancient Greek temples against sea and sky backgrounds, which were published by the first Greek ministries of tourism, shaped the first visual images of Greece in the Western mind.
The Bob was the most popular hairstyle of the time. Headbands were also used as accessories in women's hair. Some women did not want to fully commit to having short hair, however, so they would have a fake bob and curl up their hair and pin it.
This is a photo of Louise Brooks. The hairstyle she is sporting is the bob. This was a youthful and androgynous style. Some women would have a faux bob hairstyle if they did not want to cut their hair that short.