Although it was not designed as a bank, and has never served as such, the building is nonetheless considered one of Sullivan's "Jewel Boxes," a series of banks designed and built in the Midwest between 1909 and 1919.

[2] As in the other "Jewel Boxes," Sullivan included many windows, both on the street side and in the skylight that allowed a great deal of natural light inside.

The simple massing of this small, rectangular building with its clearly defined structure was typical of Sullivan's later work.

The same massing and similar detailing, particularly the entrance, was used by Sullivan's former associates Purcell & Elmslie in their slightly larger Exchange State Bank in Grand Meadow, Minnesota in 1910, and it is possible that this design influenced Sullivan.

(Brooks) Sullivan was assisted in the design by his draftsman, Parker Berry, who drew the perspectives.