The person who signed it "An ex-Toledoan" also wrote, "Carrying guilt for 60 years is a terrible thing."
Library spokeswoman Rhonda Sewell says the package, with its Beverly Hills, Calif., postmark, came as a shock. She says the holiday season may have moved the sender to right a longtime wrong.
Circulation clerk Harry Johnston speculates the book was taken by a high school student in a hurry.