Display of farm machinery in the arena at the 1941 Little International Exposition at South Dakota State College.

People looking at a display of farm machinery at the 1950 Little International Exposition at South Dakota State College.

Men stands in front of farm machinery with signs that read, "Accurate, durable economy," at the 1956 Little International Exposition at South Dakota State College. He has a stick pointing at a sign that reads, "Corn borer control granulat DDT."

People looking at a display of tractors at the machine show during the 1958 Little International Exposition at South Dakota State College.

Man looking at bales of hay in the agronomy exhibit at the 1968 Little International Exposition at South Dakota State University.

Vendor speaks with a man about the farm equipment they are standing by in the machinery show at the 1970 Little International exposition at South Dakota State University.