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UBBasel Map Kartenslg Schw Cl .tif accession number Basel UB unibas ch localbase DSV conlng GER func findb findcode SYS request Kartenslg Schw Cl Gabriel Walser Canton Basel sive pagus Helvetiae Basileensis cum confinibus Gabriel Walser Size cm help warp Institution Basel University Library lat map date Kupferstich