Braille signs, wall signs, bathroom signs, and floor signs, all of the foregoing signs in the nature of non-luminous and non-mechanical signs not of metal; tactile signs in the nature of non-luminous and non-mechanical signs not of metal; signs in the nature of non-luminous and nonmechanical signs not of metal incorporating near-field communication tags; signs in the nature of non-luminous and non-mechanical signs not of metal incorporating RFID tags; signs in the nature of non-luminous and n...