Thanks dear. It is 1 on the left and than 13 on the right in the photo showing that the lighter was made the first month (Jan) of 2013 (13) being the year. It is better to have a Zippo made at the first of the year than at the end. For many reason for a person that collects Zippos unless it was made in the month that something happen big in the new ie 9/11. You have a very good lighter since it was made in the first month of the year. Thanks for the up dated photos. I am watching