Oddi wrth Wicipedia, y gwyddoniadur rhydd.
	    
	    	    	    
	    Gall y ffeil hon gael ei defnyddio gan nifer o brosiectau eraill.
| Description | English: Portrait of Friedrich Nietzsche, 1882; One of five photographies by photographer Gustav Schultze, Naumburg, taken early September 1882.Public domain due to age of photography. Scan processed by Anton (2005)
 Deutsch: Portät Friedrich Nietzsches, 1882; Das zugrunde liegende Original stammt aus einer Serie von 5 Profilfotographien des Naumburger Fotographen Gustav Schultze, Anfang September 1882. | 
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| Permission | see below | 
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