Library book in the US returned after 50 years with US$20 bill

Laura Keller, Plymouth, Pennsylvania Public Library director, holds up the book 'Coins You Can Collect' after it was returned 50-years overdue. Photo: AP

A book checked out a half-century ago has been anonymously returned to a library in northeastern Pennsylvania, officials said.

The Wilkes-Barre Citizens' Voice reports that the 1967 copy of Coins You Can Collect by Burton Hobson arrived last month at the Plymouth Public Library in Luzerne County along with a US$20 bill.