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Nous avons trouvé 3 éléments semblables.
Médias Collections   Groupes Bissett Creek, Ontario  
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  • Maria Township ca.1869
    Maria Township ca.1869
    imagetextcollection  April 7, 1869     Examined and certified a true copy. A. Russell, Assistant Commissioner.
    imagetextcollection  April 7, 1869   Examined and certified a true copy. A. Russell, Assistant Commissioner.
    Head, Clara and Maria Public Library
  • Maria Township ca. 1866
    Maria Township ca. 1866
    imagetextcollection  July 19 1866     Department of Crown Lands Ottawa. Copy created July 19, 1866. Signed A. Russell, Assistant Commissioner
    imagetextcollection  July 19 1866   Department of Crown Lands Ottawa. Copy created July 19, 1866. Signed A. Russell, Assistant Commissioner
    Head, Clara and Maria Public Library
  • Maria Township ca. 1886
    Maria Township ca. 1886
    imagetextcollection  1886     Early surveyors, like William E. Logan, used Rochon micrometer telescopes and targets (disk on a calibrated pole) to measure distance. Each microscope had a different calibration and therefore a different range. The instruments were calibrated against a distance measured with a surveyors chain (also known as Gunter's chain). One chain ...
    imagetextcollection  1886   Early surveyors, like William E. Logan, used Rochon micrometer telescopes and targets (disk on a calibrated pole) to measure distance. Each microscope had a different calibration and therefore a different ...
    Head, Clara and Maria Public Library
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