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Keywords from Image Description:
Fotothek df tg Akustik Schall Sprachrohr Ordensliteratur. Scan Deutsche Fotothek dftg color MIKCenter Berlin GmbH ohne Seitenangabe Ellwangen Pragmatia Phonologia peractae in monte Eustachy Papier Kupferstich cm Akustik Schall Sprachrohr Ordensliteratur ppn Druck Deutsche Fotothek gefrdert von der Deutschen Forschungsgemeinschaft