The Tracking Project website shows a series listing that ranges from 1968 to 2009, and at from three to four-year intervals between the series selected for the study. The only four that I managed to hoard are from series 2003 and 2003A. Question --- Did any of our good membership have the interest or desire to collect these Tracking Study bills? If this thread results in silence, it will confirm that I'm a loony nutcase. It's probably best that I live on an island, where I can't do much harm.