U.S. Postal Service has just introduced its annual batch of 2016 stamps.

Among the stamps is a purple-and-gold stamp celebrating the two most significant festivals in Islam: Eid al-Fitr and Eid al-Adha.

The stamp’s gold calligraphy (by Mohamed Zakaria of Arlington, Va.) reads Eidukum mumbarak, which translates as: “May your Eid be bountiful (or blessed).”

The stamp features no actual imagery.