DescriptionOrganeum Harmonium Debain.jpg English: Harmonium built by Debain in Organeum in Weener, district of Leer, East Frisia, Germany Deutsch: Harmonium von...
DescriptionOrganeum Harmonium Debain (02).jpg English: Harmonium Debainin Organeum in Weener, district of Leer, East Frisia, Germany Deutsch: Harmonium von Debain...
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