This image shows the neo-Gothic tower and entrance to the Grace Episcopal Church of Galena, Illinois. It is the oldest Episcopal Church in the Chicago Diocese.
The description states:
GRACE EPISCOPAL CHURCH, GALENA, ILLINOIS
Founded 1827, erected 1847. Stained glass windows imported from Belgium. The delicate silvery tones of the 1838 one-manual organ have been strengthened by an electric blower.
–The term one manual means a single keyboard, which indicates a simpler design than most organs known today, which have multiple keyboards.
This postcard likely dates from the 1950s.