Argentine Bird Charity Stamp Collection (Pro Infancia Series)

This is a collection of Argentine postage stamps displayed on a professional white stock sheet with clear acetate mounting strips. The set predominantly features the 'Pro Infancia' (For the Children) semi-postal series from Argentina, dating approximately to the 1950s or 1960s. The stamps are multi-colored lithographs depicting indigenous South American avian species, including a Toucan, Woodpecker, and various songbirds. Each stamp is vertically or horizontally oriented with perforated edges. A notable feature is the semi-postal valuation (e.g., '18 + 9 Pesos'), indicating a surcharge was paid for charitable purposes. The stamps appear to be in Mint Never Hinged (MNH) or Lightly Hinged (LH) condition, showing bright colors across a palette of blues, greens, yellows, and earthy oranges. The paper appears clean with no significant foxing, creasing, or tearing visible. The craftsmanship reflects the classic high-quality engraving and printing standards of mid-20th-century philately, intended for both postal use and the collector market. The arrangement is orderly, indicating a well-maintained private collection.