This is one of the 5 possibly 6 hero aluminum visors used after season 5 episode 9. During the next few episodes they were using numerous visors before the change over to the single bar design. Some had the single bars, some had the double bars, some had the shiny bars and other the dull brass bars. Episode 16 season 5 they seemed to have them all down to either the shiny or dull brass bars in the aluminum frames...hero visors only. They used this style from season 5 through "Generations". Was used in a museum display at one point in its life when it was part of John Castillos personal collection.