Agreed - some quality artwork for these promotions…
http://www.revengeofthe5th.net/2014/05/the-awesome-burger-chefburger-king-star.html
^ from http://theswca.com/images-store/bcswpostersposter.html
^ from http://www.battlegrip.com/star-wars-posters-at-burger-chef-in-1977/
A nice story on them here - https://craigzablo.com/?p=9708