This will probably turn in to a simple question and a simple answer for most of you. Unfortunately, it's not that simple for me and I need some help.
I am trying to find out the difference between two Air Mail booklets I have. In general I know they belong to the C64b or the C64c group. I also know that both feature only Slogan 3. Considering the slogan and the color (pink and red), by way of elimination, I find that I would only be left with booklet C14, C15, C18 and C19. When looking at these two booklets, one appears to be pink and red, and the other one pink, red and white. Somewhere in my analysis must be a mistake, one that's due to my inexperience in these matters. I have attached pictures of the two booklets and hope that someone in this group is able to help. I scanned each of the two pictures with a black background and a white background.
In advance, thank you very much,