Rare snapshots of John and Yoko visiting George before the Concert for Bangladesh in 1970 are up for auction from Sotheby's.
The photographs show Lennon smiling and joking around and Yoko Ono engaged in conversation with a frosty looking Harrison.
The late Harrison asked all his former bandmates to perform and it would have been the first time the group would have appeared on stage together in the U.S. since 1966.
Drummer Ringo Starr and Lennon agreed but McCartney refused due to a rift over the legal problems the Beatles split had caused.
But just days before the Concert for Bangladesh at Madison Square Garden in New York Harrison and Lennon's friendship waned because of a row over Yoko Ono performing on the bill with Lennon.
Lennon accepted Harrison’s demand that Yoko Ono was not allowed to perform.
But Lennon and Ono had an argument days before the gig and Lennon left New York so he did not appear on stage.