1.   And we would get very adept at picking the crank letters out.

2.   Crank letters purportedly from Princess Grace have been arriving at the royal palace in Monaco for about a year, reports the New York Post.

3.   Every year, Harvard receives unfavorable information about students it has admitted, ranging from unsigned crank letters to telephone calls from angry high school administrators, she said.

4.   His co-workers agreed that Stevens, who had bad vision, apparently stuck his nose inside the crank letter being passed around the office.