Survey of Northern and Northwestern Lakes - DPLA - 635fceb3750e8c2f0158c53f749dffeb

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Survey of Northern and Northwestern Lakes - DPLA - 635fceb3750e8c2f0158c53f749dffeb

description

Summary

Shows lines of equal magnetic declination for the year 1880.

date_range

Date

1880
copyright

Copyright info

Public Domain

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