Sunlight filters through a canopy of towering Lombardy poplars onto the famous flower-festooned trajineras of Xochimilco — the ancient Aztec "floating gardens" canal network on the southern edge of Mexico City — as a flotilla of flat-bottomed boats drifts lazily past in this evocative real-photo postcard from the early 1950s. Each wooden trajinera is crowned with a floral arch bearing a painted name, and the passengers — women in dark rebozos, men in light summer shirts and broad-brimmed hats — seem utterly unhurried. The card was mailed from Monterrey, Mexico, to Mrs. Helen at Teale Machine Co., 1425 University Avenue, Rochester, New York, by a traveler named R. Teele who wrote: "Having a wonderful time in 'Mexique.' But I will be soon on my way back home!!" — a cheerful dispatch that captures the postwar American enthusiasm for Mexican tourism perfectly.