Lines of Equal Magnetic Declination and of Equal Annual Change in Western Canada for 1917.0.
One of 58 maps from Walter or Otway Wilkie salvaged by the donor from the red Wilkie residence at the corner of Brown and Sellers Road [?] shortly after the death of Mr. Wilkie (in the 1950s?). Donor believes that Mr. Wilkie worked for the CNR (or CPR?) and possibly the Great Northern Railroad. The maps were never used by the donor. Only 6 of 58 maps kept kept by LCM, the remaining maps were transferred.