Silk Road Artifacts and the Greater Khingan Mountains, China

Form the city of Ziyang in the Chinese province of Sichuan. The three stamps at the top are from a 2025 set of four that showcase historical artifacts with connections to the silk road. From left to right, a Han dynasty silk armguard, a Tang dynasty mural painting, and a Northern Zhou dynasty glass bowl. The bottom stamps are from a 2025 set that show the different ecosystems of the Greater Khingan mountains.