Keywords: Suuri ohikulkukone 2.JPG en The great transit instrument in the Meridian hall of the Helsinki observatory Made by Utzschneider und Fraunhofer ca 1823 fi Suuri ohikulkukone Helsingin observatorion Meridiaanisalissa Utzschneider und Fraunhoferin noin vuonna 1823 valmistama own MKFI 2012-12-01 Collections of the Helsinki Observatory Meridian instruments 2012 in Helsinki December 2012 in Finland Taken with Canon EOS 60D Taken with Canon EF-S 15-85mm F3 5-5 6 IS USM Utzschneider und Fraunhofer Files by User MKFI |