Collection search - Lines of equal magnetic inclination in Western Canada for 1917.0 and of equal annual change between 1912 and 1917. [cartographic material]
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Record information – Brief 
Lines of equal magnetic inclination in Western Canada for 1917.0 and of equal annual change between 1912 and 1917. [cartographic material]
Hierarchical level:AccessionDate:1917Reference:1998-01096-1BAN no.:1998-01096-1Type of material:Maps and cartographic materialFound in:Archives / Collections and FondsItem ID number:139629 -
Record information – Details Date(s):1917Place:Ottawa :Place of creation:OntarioPublisher:Topographical Surveys Branch,Extent:1 map.Language of material:EnglishProvenance:Additional information:Source:Government -
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