In 1953, Coca-Cola attempted to persuade the US Treasury to mint a 7.5 cent coin. A can of Coke had been a $.05 since 1886 but its price needed to be raised due to inflation; however, they felt $.10 was too big of an increase. – WTF Fun Facts
Source: https://en.wikipedia.org/wiki/Fixed_price_of_Coca-Cola_from_1886_to_1959