This is a beautiful sheet of 2 stamps, issued by Mali in 2011, honoring renowned scientists from China by featuring famous mathematician and astronomer Zu Chongzhi. The sheet is Post Office fresh, mint never hinged, and F/VF.
This is a beautiful sheet of 2 stamps, issued by Mali in 2011, honoring renowned scientists from China by featuring famous mathematician and astronomer Zu Chongzhi. The sheet is Post Office fresh, mint never hinged, and F/VF.