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Keywords from Image Description:
Argelandersali. en Argelander hall the lecture hall of the Helsinki observatory The right door is painted false door an other false door is hidden by the cabinet on the left fi Argelandersali Helsingin observatorion luentosali Oikean puoleinen ovi on maalattu valeovi toinen valeovi on vasemmalla olevan kaapin takana own MKFI Interior