Miss Helen Austin was in Sparks, a city in western Nevada.

Sparks was a small settlement near Reno until 1904, when the Southern Pacific Railroad built a switching station and Maintenance Yard in the town.

https://en.wikipedia.org/wiki/Sparks,_Nevada

Sometime around 1910, Helen received a postcard from Aunt Adelie.

The postcard was not mailed, but it appears that Aunt Adelie lived in Maine.

The face of the postcard is a photograph of the harbor in Elsworth, a beautiful city in east-central Maine -near Acadia National Forest.

The harbor at Elsworth is on the Union River and represents the western extent of navigation on that stream.

https://en.wikipedia.org/wiki/Ellsworth,_Maine

The postcard was published by the Metropolitan News Company of Boston; it was printed in Germany.

On the reverse, Aunt Adelie assures Helen that “I have not forgotten you”, Aunt Adelie promises to “write you a long letter”.

The postcard may have been included in the promised letter.

One hopes that Helen was thrilled by the photograph from Maine and that she and Aunt Adelie maintained a cordial correspondence.