Sankt Gallen's more physical archive is worth a visit too: https://www.stiftsbezirk.ch/de/stiftsbibliothek/
Indeed. And the one in Admont, Austria: https://stiftadmont.at/en/about-the-abbey-library/
Indeed. And the one in Admont, Austria: https://stiftadmont.at/en/about-the-abbey-library/