This classic Serbian stamp, issued in 1904, features a portrait of King Peter I of Serbia, who reigned from 1903 to 1918. The design is finely detailed, with the King in military uniform framed by laurel wreaths and topped with the Serbian crown. The denomination of 15 para is clearly inscribed in shields at both lower corners. Printed in a rich violet shade, it represents Serbia’s early 20th-century monarchic era and reflects the transition from the Obrenović dynasty to the Karađorđević dynasty. Stamps from this series are prized by collectors for their historical significance and elegant engraving.