The neoclassical grandeur of the Teatro de la Paz commands this early-era Mexican souvenir card — its Ionic-columned portico and glittering gilded dome rising above broad ceremonial steps where a handful of figures in period dress linger in the morning light, a church tower punctuating the skyline to the left. Built between 1889 and 1894, the Teatro de la Paz remains one of the finest 19th-century theater buildings in Mexico, and this Sonora News Company card — published from the City of Mexico for the international tourist trade — captures it in full chromolithographic color during the height of the Porfiriato's architectural ambition. The unused back carries the bilingual postal rate notice (USA/Canada 2¢, Europe 4¢) and the distinctive Sonora News Co. green medallion stamp, placing it firmly in the pre-divided-back era, circa 1900–1907.