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Ronning road planer prototype

Ronning road planer prototype

Ronning road planer prototype, undated.

Ronning Ensilage Harvester (side)

Ronning Ensilage Harvester (side)

Ronning Ensilage Harvester (side) patented by Andrean and Adolph Ronning of Minneapolis in 1915. Manufactured by the American Harvester Company, also of Minneapolis.

Ronning Ensilage Harvester (front)

Ronning Ensilage Harvester (front)

Ronning Ensilage Harvester (front) patented by Andrean and Adolph Ronning of Minneapolis in 1915. Manufactured by the American Harvester Company, also of Minneapolis.

Ronning Ensilage Harvester

Patented in 1915, the ensilage harvester improved on standard practices for harvesting and storing crops, and streamlined farm work. Its basic design, largely unmodified, is still used by agricultural implement companies worldwide.

Wheat harvest at G.S. Barnes and Company farm

Wheat harvest at G.S. Barnes and Company farm

Wheat harvest at G.S. Barnes and Company farm in Glyndon (Clay County), c.1878.

Bruns and Finkle general store, Moorhead

Bruns and Finkle general store, Moorhead. Stereograph, c.1880.

Bruns and Finkle Grain Elevator, Moorhead

In 1878, Red River Valley businessmen Henry A. Bruns and Henry G. Finkle built the first steam-powered grain elevator in the United States. In its first harvest season, the grain elevator handled almost 250,000 bushels of wheat from more than 5,000 wagons.

Duluth Ship Canal Opening, 1871

The opening of the Duluth Ship Canal in 1871 was a historical turning point for the city of Duluth and the Twin Ports of Duluth and Superior.

Minnesota Brush Electric Company letterhead, 1887

Minnesota Brush Electric Company letterhead, 1887

Minnesota Brush Electric Company letterhead from 1887, showing the company's electric light mast and generating plant.

Light mast at Bridge Square, Minneapolis

Light mast at Bridge Square, Minneapolis

Full view of the 257-foot electric light mast at Bridge Square, Minneapolis, c.1884.

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