Keywords: Kronometrejä ja aneroidibarometrejä.JPG en Chronometers and aneroid barometers in Helsinki observatory 2 aneroid barometer mid-19th century; 3 aneroid barometer Greiner-Geissler before 1875; 4 chronometer John N Arnold 1807; 5 chronometer C F Tiede ca 1836; 6 choronometer Nieberg 1850-1950 fi Kronometrejä ja aneroidibarometrejä Helsingin observatoriossa 2 aneroidibarometri mid-19th century; 3 aneroidibarometri Greiner-Geissler ennen 1875; 4 kronometri John N Arnold 1807; 5 kronometri C F Tiede noin 1836; 6 kronometri Nieberg 1850-1950 own MKFI 2012-12-01 Collections of the Helsinki Observatory Chronometer Aneroid barometers 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 Files by User MKFI |