The smoky warmth of a New Orleans jazz session leaps off this vibrant chrome-era postcard, capturing the legendary Kid Thomas Band mid-performance at Preservation Hall, 726 St. Peter Street — one of the most iconic rooms in American music history. Six musicians crowd the small stage: a trombonist, two saxophonists, an upright bassist, a drummer, and a clarinetist, all rendered in Grant L. Robertson's rich color photography as an appreciative audience leans in close. Preservation Hall opened in 1961 and became the world's foremost venue for traditional New Orleans jazz, hosting elder statesmen of the art form in their natural element. Kid Thomas (Valentine) was one of its most beloved bandleaders, a trumpeter whose career stretched from the 1920s into the 1980s. This unposted card remains a vivid document of a golden era of preservation-era jazz.