 Pieces made in the 1980s have the number eight under the letter "n" in the logo, pieces from the 1990s have the number nine and pieces made in the 2000s have a 0 in the same place.From June 1996 to July 1998 Fenton marked preferred seconds sold in their gift shop with a sandblasted solid or hollow star.In August 1998 an F replaced the star.