Spain's postal service has been rebuked by anti-racism campaigners after it launched a limited-edition run of skin-toned stamps in which the dark skin tones have a lower monetary value than the light ones.
The Equality Stamps range was launched to coincide with the anniversary of the murder of George Floyd by a US police officer.
The Correos postal service said the concept of having to pay more for the white skin stamp and progressively less for darker ones was "a protest against a painful reality".
"The darker the stamp, the less value it will have, therefore, when making a shipment it will be necessary to use more black stamps than white," Correos announced, explaining that the idea is to make people "reflect on the inequality created by racism".