694px-Canada_provinces_1886-1889
Map of the provinces and territories of Canada as they were between 1886 and 1889.
In 1886, the District of Keewatin’s southwestern border was adjusted.
In 1889, the disputed area between Manitoba and Ontario was generally granted to Ontario, with some going to the District of Keewatin, and Manitoba getting none.
A useful map for collectors of Canada and postal historians…