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Keywords from Image Description:
Hvzdrna Vysok koly technick ve Lvov. en Imperial and Royal Observatory High Polytechnic School in Lvov cs Hvzdrna Vysok koly technick ve Lvov de Observatorium der Technischen Hochschule in Lemberg pl Obserwatorium Szkoy Politechnicznej we Lwowie uk ru Politechnika we Lwowie Obserwatorium Pocztwka Foto Kossowski