Extending Soo Line tracks, Minneapolis, 1892.

Soo Line railway employee’s time pass, 1891

Minneapolis, St. Paul and Sault Ste. Marie Railroad locomotive, c.1890

Soo Line diesel to Chicago, 1948. Photograph by George Miles Ryan Studio

Triangular wooden walking stick capped with a sterling silver floral engraved headpiece used by William de la Barre.

Painted milk glass cigar humidor used by William de la Barre.

Soo Line Railway ticket, including free admission to the Exposition Building, October 1888.

Shaft of the Soudan Mine, 1962. Photographer: Eugene Debs Becker.

Soudan Mine headframe, 1962. Photograph by Eugene Debs Becker.

Postcard of Soudan Mine, c.1925.