good point, and "Six Days on the Road" (1963) suggests that on-label use was more common in those days. https://www.youtube.com/watch?v=6ncw-CwRwRo&t=18s https

good point, and "Six Days on the Road" (1963) suggests that on-label use was more common in those days. https://www.youtube.com/watch?v=6ncw-CwRwRo&t=18s https://www.youtube.com/watch?v=6ncw-CwRwRo&t=18s