From the record
“The Menno Yoder barn is one of the two remaining poured concrete polygonal barns in the United States state of Indiana. Built on the outskirts of Shipshewana in 1908 by Menno Yoder, this 12-sided barn has been expanded upon.”
Wikipedia article Menno Yoder Polygonal Barn, CC BY-SA 4.0.
One of 10 National Register listings published here for LaGrange County · listed in 1993 · category: Building · built in 1908.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service