The Moorish Idol

This elegant airmail (Poste Aérienne) denomination showcases a striking geometric engraving of a Moorish Idol (Zanclus cornutus), focusing on its highly elongated, sickle-shaped dorsal filament, projecting snout, and distinct vertical contrast bands. Marked with the regional geographic designation "COSSIMANGA", the artwork by Jacques Derrey isolates the aerodynamic, fluid movement of this specialized pelagic reef fish against a clean field. Historically, this issue reflects the sophisticated ichthyological surveys commissioned by the French colonial ministry to showcase the natural wonders of its oceanic territories, preserving an important archival record of a notoriously delicate species that thrives along the deep drop-offs and current-swept channels of the Comoros.