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CHNB Bern Marzilitor Collection Gugelmann GSGUGESTADTTOREB.tif Information Creator Johann Gottlieb Lhrer Bern Marzilitor Bern Lithographie unkoloriert Swiss National Library CHNBCollection Gugelmann PDold User Swiss National Library GSGUGESTADTTOREB helveticarchives ch aspx ID helveticarchives ch Swiss National Library Prints