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Ursan thtitorni sislt. en Interior of Ursa observatory Two refracting telescopes mm and mm along with more modern equipment Photographed with fisheye lens fi Ursan thtitorni sislt Kaksi linssikaukoputkea mm ja mm sek uudempaa kalustoa Kuvattu kalansilmll own MKFI region FIheading Ursa Observatory Refracting telescopes in