An inside look at the obsessive, secretive, and often bizarre world of high-profile stamp collecting, told through the journey of the world's most sought-after stamp.
When it was issued in 1856, it cost a penny.
In 2014, this tiny square of faded red paper sold at Sotheby's for nearly $9.
5 million, the largest amount ever paid for a postage stamp at auction.
Through the stories of the eccentric characters who have bought, owned, and sold the one-cent magenta in the years in b.