Rainbow Swash is a work by the artist, Corita Kent who also designed the 1985 US Love Stamp for the US Postal Service. The rainbow design painted on a 140-foot tall LNG storage tank is the largest copyrighted work of art in the world. Highly visible from daily commuters drives on the Southeast Expressway (Interstate 93), the landmark is considered one of the major landmarks of Boston, akin to the Citgo sign.
In 1971, then-Boston Gas Company president Eli Goldstone commissioned Corita Kent to paint the Rainbow Swash design on one of two adjacent LNG tanks facing Boston's Southeast Expressway. The original design was painted on an 8-inch (20 cm) scale model with 20 painters reproducing the work on the 140-foot high tank.
Since the 1970s, the Rainbow Swash has been controversial. The mural was criticized as featuring a profile of Vietnamese Leader Ho Chi Minh's face in its blue stripe (not shown here). Kent was a peace activist and some believe she was protesting the Vietnam War, but Kent herself always denied embedding such a profile. In 1992, the original rainbow-painted LNG tank was torn down and the Rainbow Swash was recreated on the adjacent tank despite objections from veterans groups. However, the blue stripe is less pronounced in the 1992 reproduction.