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BMAm. Scan from Johann Christoph Brotze's book Sammlung verschiedner Lieflndischer Monumente Zweyte Etage deelben Hauses nach dem Fol praecedenti befindlichen Maasstabe das Civil Gouverneur Haus in Riga University of Latvia Academic Library acadlib lv Johann Christoph Brotze PDold Johann Christoph Brotze Riga in the th century