The Hermès Birkin prototype, originally made for Jane Birkin, sold at a Sotheby's auction in Paris for $10.1 million. What to know about the unique and coveted purse.

Jane Birkin inspired the Hermès Birkin, which became the most famous handbag design in the world. Here's a look back at the secret history of the original prototype—and why the French fashion icon will always be the original bag charm girl.

Jane Birkin's original Hermès bag—made by designer Jean-Louis Dumas after the actress couldn't find a purse large enough to fit of all her belongings—was sold for $10.1 million at an auction.