Introduced in 1972, the Ruby bark is a reddish stained sandblast. Originally, the stain was a medium red. A couple years later the stain was changed to a brighter red, almost pinkish in color. The almost pink color caused pipe sales to plummet. In 1976, the stain was changed back to the original darker medium red finish. This finish was retired in 1987, and brought back in 2007.