From the record
“Pottawatomie Indian Pay Station is a historic building in St. Marys, Kansas and associated with the Potawatomi tribe.”
Wikipedia article Pottawatomie Indian Pay Station, CC BY-SA 4.0.
One of 14 National Register listings published here for Pottawatomie County · listed in 1972 · category: Building · built in 1855, vernacular architecture.
Sources: the Wikipedia article · the National Register database, National Park Service