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Keywords from Image Description:
Hexadecimal Clock by Nystrom. en Hexadecimal Clock published in by John Nystrom as part of his tonal system proposal the attempt to replace the decimal by the hexadecimal system de Hexadezimaluhr verffentlicht von John Nystrom als Teil seines tonal system Vorschlags dem Versuch das dezimale durch das hexadezimale Zahlensystem zu