A historical broadside mounted on cardboard, advertising "Porter's Art Palace," located at 100 West Fourth Street, Cincinnati, as the "Largest and Most Magnificent Gallery in America." The advertisement highlights the gallery's offerings, including daguerreotypes, ambrotypes, and photographic portraits of "Statesmen, Heroes, and Divines." It emphasizes the gallery's renowned artistry and promises perfection in its life-size and miniature portraits, copying services, and hand-colored photographs.

William Southgate Porter, a prominent daguerreian of his time, operated the Art Palace in 1858. By 1859-1861, he partnered with Hoag under "Porter and Hoag," continuing at the same location. This broadside offers a rare and vivid glimpse into mid-19th century photographic culture and marketing.