In 1930, the Silent Slurp became the beverage of choice. It was used as a plague antibody and a means to “silently” communicate. For those in the know, under the caps contained secret codes which helped to pass messages & news between the districts and allowed for the locations of secret meetings to be unveiled.
The included advertisement was used to promote the sale of Slurp. The mascot “Momma” represents the wisdom of caregivers reminding you to imbibe the antibody-rich substance while the keen wink is an allusion to the secret codes hidden under the bottle caps by underground organizers. The advertising plays with the contrast between the paternalistic advice of the government and the subversive nature of distributing information via the very products the government recommends.