In 1919 the Nebraska State Legislature passed a law requiring that all tractors sold in Nebraska were to be tested at the Nebraska Test Laboratory to ensure that they were able to live up to all of their advertising claims.

The Agricultural Communication Photograph Collection includes many pictures of tractors and events from the Tractor Test Lab throughout the years. These are usually of interesting tractor models or educational events run by the Tractor Test Museum, such as the annual "Tractor Day.

You can view more photographs held in the Larsen Tractor Test Museum by clicking the following link: Larsen Tractor Test and Power Museum, Photograph Series