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Engelbert Humperdinck Hnsel und Gretel Otto Bhler. Engelbert Humperdinck Hnsel und Gretel silhouette cm photo of Bhlers silhouette printed on thick card cite book Bhler Otto Dr Otto Bhler's Schattenbilder Wilhelm Lechner Vienna Austria III Created before published in Otto Bhler PDold Black and white drawings Otto Bhler Engelbert