This attractive San Marino commemorative depicts the Italian Sparrow (Passer italiae), a species native to the Italian peninsula and microstates such as San Marino. The bird is shown perched on a flowering branch, combining ornithology with delicate botanical illustration—an approach typical of mid-20th-century European nature issues. Issued in 1 Lira denomination, the stamp reflects San Marino’s long tradition of finely engraved wildlife themes aimed at international collectors rather than everyday postal use. Designed by A. M. Trechslin and printed by Courvoisier S.A., it is valued for its balanced composition, soft natural tones, and clean white field. A desirable single for bird, fauna, and European microstate collections.