The document is expected to fetch more than $10m and the proceeds will be donated to several charities. 0Civil rights leader Martin Luther King waves to supporters 28 August 1963 on the Mall in Washington DC.Photograph: AFP/Getty ImagesThe likely only surviving handwritten final full draft of Martin Luther King Jr’s historic 1963 I Have a Dream speech is set to be auctioned in New York in January, with proceeds benefiting several charities.