Christie’s New York has announced that two classic works on paper by Norman Rockwell will lead its American Art auction in September.

One of the Rockwell drawings, Study for ‘The Runaway,’ illustrates a young boy and a policeman sitting side by side at the counter of a coffee shop and is one of the artist’s most iconic images. Underneath the boy’s seat is a bag containing his belongings as he is preparing to run away from home. The policeman, in a friendly manner, tries to talk the child out of his departure. The completed work was used as a Saturday Evening Post cover on the Sept. 20, 1958, issue. The piece is expected to bring in $80,000 to $120,000.