After thousands of copies of Twain's Huckleberry Finn had been printed and bound, it was discovered that a mischievous engraver had altered the plates of an illustration to show old Silas Phelps endowed with a substantial male sex organ, thereby rather crudely altering the interpretation of Aunt Sally's question: "Who do you think it is?"

[Despite the posting of a reward, the culprit's identity was never discovered; the offending illustration had to be cut out by hand and replaced.]

[In 1876, Twain made publishing history when his manuscript copy of The Adventures of Tom Sawyer became the first typewritten manuscript ever delivered to a publisher. (The typewriter used? A Remington of course.)]