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Bmam. Scan from Johann Christoph Brotze's book Sammlung verschiedner Lieflndischer Monumente Prospect des zum Behuf der Richtersthle der Statthalterschaft neu erbauten Theiles des Rigischen Schloes die Ansicht University of Latvia Academic Library acadlib lv Johann Christoph Brotze PDold Johann Christoph Brotze Drawings of Riga