SCG10104 - Spanish Sahara 1957 – Striped Hyena (Hyaena striata) – 15c + 5c Día del Sello Semi-PostalA striking 1957 semi postal issue from Spanish Sahara, released for Da del Sello (Stamp Day). The design features the Striped Hyena (Hyaena striata) in a beautifully engraved sepia tone, showcasing the regions desert wildlife. Issued with a 15 cntimos face value plus 5 cntimos surtax, supporting philatelic and postal initiatives. A classic colonial era wildlife stamp, prized by both Spain related and thematic zoology collectors. Crisp detail and