Black text on a yellow bag on a black background
THE SEVEN-UP CO. UC131
This button was part of the 7-Up Company's "Un-" campaign, which launched in 1967 and branded 7-Up as the "Uncola", a hip soft drink instead of just a cola. Promotional images featuring brightly colored, psychedelic images appeared on billboards, posters, and in magazine advertisements until the mid 1970s, although the campaign continued into the 1990s. Other slogans used included "Un more time," "Hole in Un," and "Un in the Sun."
Source: Dougherty, P. H. (1972, February 10). Advertising: 7-Up promotes the 'Unburger'. The New York Times. Retrieved from https://www.nytimes.com/1972/02/10/archives/7up-promotes-the-unburger.html