A drawing of Snape by J.K. Rowling –

“On Tuesday 21st May 2013 an annotated first edition of Harry Potter and the Philosopher’s Stone, containing J.K. Rowling’s personal annotations and illustrations, raised £150,000 for English PEN and for J.K. Rowling’s own charity, Lumos, when it was sold to an anonymous bidder at a Sotheby’s auction.”