Issued by the Republic of Tuva, Russian Federation, this vibrant stamp features a graceful dolphin swimming through a colorful coral reef ecosystem. The design highlights marine biodiversity with tropical fish, shells, and coral formations surrounding the central dolphin. Its rich multicolor printing and decorative shell border make it visually striking for marine-life thematic collections. The high denomination 1800 rubles reflects the inflationary postal period of the 1990s. This issue is popular among collectors of marine fauna, dolphins, and regional Russian republic stamps. A beautiful thematic addition for ocean-life and wildlife philately collections.