Wikipedia
Lucky Bag
A Lucky Bag is the term for the United States Naval Academy 'year book' dedicated to the graduating classes. A traditional Lucky Bag has a collection of photos taken around the academy and photographs of each graduating officer along with a single paragraph describing the individual written by a friend. While no one knows for sure, it is speculated that it is named after the 'lucky bag' that contains the possessions of sailors who lost items at sea.
Each year every midshipman and graduating officer receive a Lucky Bag and is archived by both the US Naval Academy and the USNA Alumni Association.