MoMA's rejection letter to Warhol

From the archives, check out this letter dated October 19, 1956 by the first director of New York’s Museum of Modern Art to Andy Warhol informing the pop artist that the museum was regretfully rejecting his generously free gift of his drawing entitled “Shoe.” The letter is currently part of the Andy Warhol Museum’s archives located in Pittsburgh. I wonder how the museum today would respond to an unsolicited gift.