Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Essay
Typescript of a rough translation into English of Dr. Rudolf Trebitsch, Phonographische Anfnahem...Sommer 1907
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.
Amgueddfa Cymru
Typescript of a rough translation into English of Dr. Rudolf Trebitsch, Phonographische Anfnahem...Sommer 1907