From the first to fakes: Original Hermès Birkin bag goes up for auction

As the original Birkin bag goes up for auction at Sotheby's in Paris, we discuss what this original prototype is expected to fetch for. We also take a look at how this iconic handbag came to be: thanks to the late Jane Birkin's clumsiness and a chance encounter on a flight in first class. We also discover how near-identical knockoffs, or "superfakes", are making it harder to check if a luxury bag is the real deal or a counterfeit version.