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Keywords from Image Description:
Plaque Pikisaari Oulu . fi Raunioitunut Oulun linna tuhoutui ruutikellarin rjhtess heinkuuta Tapahtuman muistoksi on kiinnitetty laatta kiveen Pikisaaressa jonne asti linnan jnnksien kerrotaan lentneen rjhdyksess en The remains of the Oulu castle were destroyed in an explosion of the gunpowder cellar in July The plaque fixed