Art on a Postcard's annual Secret Auction took place on 17th November 2016 and raised £74,000 for the Hepatitis C Trust, by anonymously auctioning off 400 postcard sized original artworks by world renowned artists such as Grayson Perry, Maggie Hambling, Peter Blake, Harland Miller, Gilbert and George, Rebecca Salter RA and Damien Hirst, as well as emerging talent, at Bloomsbury Auctions.