Three embassies were sent by Charlemagne to Harun al-Rashid's court and the latter sent at least two embassies to Charlemagne.[17] Harun al-Rashid is reported to have sent numerous presents to Charlemagne, such as aromatics, fabrics, a clock, a chessboard, and an elephant named Abu 'Abbas.[17] The automatic clock was a water-clock made of brass, described in the 807 Royal Frankish Annals. It marked the 12 hours with balls of brass falling on a plate every hour, and also had twelve horsemen who appeared in turn at each hour.[22][23]