File:Lankamikrometri 2.jpg

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English: A. Repsold & Söhne thread micrometer from 1889 in Helsinki observatory.
Suomi: A. Repsold & Söhnen lankamikrometri vuodelta 1889 Helsingin observatoriossa.
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Author MKFI
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current21:35, 12 January 2013Thumbnail for version as of 21:35, 12 January 20133,720 × 2,790 (3.55 MB)MKFI (talk | contribs){{Information |Description ={{en|1=A. Repsold & Söhne thread micrometer from 1889 in Helsinki observatory.}} {{fi|1=A. Repsold & Söhnen lankamikrometri vuodelta 1889 Helsingin observatoriossa.}} |Source ={{own}} |Author =[[User:MKF...

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