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Wasseruhr Harun al Raschid. Der Kalif Harun alRaschid schenkt Karl dem Groen eine Wasseruhr um Claudius Saunier Die Geschichte der Zeitmesskunst Emil Hbners Verlag Bautzen Scan vom Januar Karel Public Domain da Quelle antiquarisch und privat PDold original upload log de Karel page de WasseruhrHarunalRaschid Karel bytes