Lot of three postcard views from Minnesota during the 1920s.

(left to right, top to bottom)
-- Boulevard Drive, Chester Park. Litho postcard. CT American Art Colored. Published by Duluth Photo Engraving Co.
-- The Clarkson Coal & Dock Co. Litho postcard. CT American Art Colored. Published by Duluth Photo Engraving Co.
-- Entrance to Duluth-Superior Harbor ... The Aerial Bridge, Span 393 Feet 9 Inches, 135 Feet High from Water Line. Cost $100,000. Litho postcard. 20223, CT American Art Colored. Published by Duluth Photo Engraving Co.

None are postally used.

The white border has been trimmed from all the cards, except that the captions were left intact. All have adhesive residue on the back from scrapbook mounting, as well as small bits of adhesive on the front. They are otherwise clean and bright.