A sheet of 10 To Form a More Perfect Union Stamps, which commemorate the civil rights movement of the 1960s by featuring many works by Black Americans. The square stamps are arranged in a U shape set against a cornflower blue background
A sheet of 10 To Form a More Perfect Union Stamps, which commemorate the civil rights movement of the 1960s by featuring many works by Black Americans. The square stamps are arranged in a U shape set against a cornflower blue background