#SOR002 - Group of 5 Royal Crown (RC) 7up Cups You get 5 for $1 (that's 20¢ each). 4 1/2" tall vintage soda cup. Has the Royal Crown (RC) on one side and Seven Up on the other. I'm not sure why these cups were made, as they have a Royal Crown logo on one side and a 7up logo on the other. Yet 7up and RC are made by completely different companies. Maybe it was some sort of joint promotion. Found in an old soda plant. Logos look like they are from the 1970s. Soda cups are popular with collectors because they are still inexpensive. You can assemble an incredible collection for less than a hundred bucks. Try doing that with other collectibles! $1.00