A tiny jewel of sand and swaying palms floats alone in the luminous turquoise shallows of Nassau's harbour — Sandy Cay, one of the Bahamas' most picture-perfect uninhabited islets, rendered in the dreamy airbrushed palette of the linen postcard era. But the real story is on the back: this card was mailed from Havana, Cuba in September 1938, bearing the Cuban Finlay commemorative slogan cancel celebrating the 1833–1933 centennial of Dr. Carlos Finlay, the Cuban physician who identified the mosquito as the carrier of yellow fever. The sender — writing to Helen in Springfield, Pennsylvania — gushes about arriving in Havana and finding it "delightful," having dined at Paradise Beach. This card traveled from a Nassau souvenir shop to a Cuban post office to a Pennsylvania mailbox, embodying the glamorous pre-war Caribbean cruise circuit at its height, just one year before World War II would shutter those carefree voyages.