A richly geometric Huichol-style vase lies on its side beside a blue-and-white Talavera vessel bursting with golden cempasúchil marigolds — the iconic flower of Día de los Muertos — while three small green apples rest between them on a woven petate mat, all set against a deep crimson damask background that gives the composition the lush warmth of a Spanish Old Master. This unused chrome-era postcard is part of the celebrated "Artes Populares Mexicanas" (Mexican Popular Arts) series photographed by Luis Márquez — one of Mexico's great mid-century documentary photographers — and published by Publicaciones Fischgrund of Mexico City. The "Arco Iris" series cards are prized by collectors of Mexican folk art ephemera for their meticulous still-life compositions that dignified artesanía as fine art decades before such recognition became mainstream.