Issued in 1902 to celebrate Guatemala’s participation in the Universal Postal Union (U.P.U.), this elegant 50 Centavos stamp depicts the Teatro Colón in Guatemala City, one of the nation’s prominent cultural landmarks of the early 20th century. The design features a detailed engraving of the neoclassical theatre rendered in blue, framed by an ornate red border. This issue forms part of the UPU commemorative series, reflecting Guatemala’s growing engagement with international postal systems and its pride in national architecture. A striking example of early Guatemalan philatelic artistry.