Lina Cavalieri on Early Outsized Postcard, circa 1900 Lina Cavalieri, Belle Epoque opera diva, in her time considered to be the most beautiful woman in the world, in costume for the Opera Grizelda.
Lina Cavalieri Italian opera singer and "the most beautiful woman in the world." Here, she's looking very much like a peroxide blonde. Women did bleach their hair back then. It was considered both disreputable and sexy.