1972 Paraguay Butterflies Postage Stamp Triptych Strip

This item is a horizontal philatelic strip containing three rectangular postage stamps from Paraguay, issued circa 1972 as part of a thematic series on native lepidoptera. The strip features three distinct butterfly species: Prepona Praeneste (left, Gs. 0.10, magenta background), Perisama Leucostigma (center, Gs. 0.15, yellow background), and Agrias Amydon (right, Gs. 0.20, blue-grey background). Each stamp is printed using a high-quality multicolor lithographic process, noted by the marginal text at the top right which reads 'SELLOS IMPRESOS EN LA LITOGRA...'. The stamps are separated by vertical perforations and are attached to a top and bottom selvage (margin). The typography is bold and modern for the era, with 'PARAGUAY' in an architectural sans-serif font and values in the lower right and left corners. The physical condition appears to be mint or near-mint, showing no visible postmarks or cancellations. The perforations are clean and intact, though a faint horizontal crease or handling mark is visible running through the center of the strip. The colors remain vibrant with no significant fading or foxing observed on the paper surface. Such stamps were typically produced by State Printers for both domestic use and the international collector market, characterized by large, colorful illustrations typical of South American topical issues of the 1970s.