Drawings, poems and prose created by Liverpool music legend John Lennon for his books In His Own Write and A Spaniard In The Works are coming to auction.
The books' publisher, Tom Maschler, has owned the material for a half century. Sotheby's in New York is selling it later.
The auction house say 89 pieces are going under the hammer and could fetch as much in the region of $1.8 million (just over £1 million).
The event coincides with the 50th anniversary of the Beatles' first appearance in America on the Ed Sullivan show.
More top news
Fire service confirms that two buildings have collapsed in an explosion thought to have been caused by a gas leak.
Dry, fine and sunny this weekend across the NW. Maybe a touch more cloud around and slightly breezier on Mothering Sunday than on Saturday
A biker critically injured in a crash in Trafford has woken from her coma - just hours after her family played the sounds of motorcyclists.