When dismounted he carries a distinctive baton as his insignia of office .
He performs his duties at State Ceremonies under the authority of the Lord Great Chamberlain , the Lord Chamberlain and the Earl Marshal .
When dismounted Great Chamberlain carries a distinctive baton as Great Chamberlain 's insignia of office .
He performs his duties at State Ceremonies under the authority of the Lord Great Chamberlain , the Lord Chamberlain and the Earl Marshal .