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GoepelmuehleF. Gpelmhle Zeichnung eines Laufrades Tretmhle nach Adam Meltzer Grafik Tafel Nr Fig Quelle Adam Meltzers neu verbesserte Mhlenbaukunst Erster Teil Auflage Merseburg Buch im Bestand von molinologe Datum Scan Autor molinologe PDold Humanpowered mills Threadwheels
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