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CHNB Rheinwaldgletscher von der Htte der Bergamasker Hirten Collection Gugelmann GSGUGEBLEULERb.tif Information Creator Johann Ludwig Bleuler Rheinwaldgletscher von der Htte der Bergamasker Hirten Rheinwaldgletscher Aquatinta koloriert Aquarell Swiss National Library CHNBCollection Gugelmann PDold User Swiss National Library GSGUGEBLEULERb