A little more history if you desire to have some more..
First off it looks like you have a Scott UX7b (Canada) postal Card
Below is where Spring Hill is located in Nova Scotia..Also some maps use Springhill and others Spring Hill.
Here is a map circa 1885 showing Spring Hill in Cumberland district.
Here is an old picture of Spring Hill..
Also even though the Post Office opened Feb.2.1873, it was not incorporated into the town of Spring Hill Nova Scotia until 1889.