RPPC Knapps Hill Chelan Washington Simmer 57 U-Shape Switchback Road Postcard For Sale

Vintage Real Photo Postcard (RPPC) capturing the dramatic, sharp U-shaped dirt switchback road ascending Knapp's Hill in Chelan, Washington. This striking topographical view shows the rugged canyon terrain and early road engineering of the Pacific Northwest.

The front is clearly inscribed with "Simmer" and "Knapp's Hill, Chelan, Wash. 57". The reverse side features an unposted AZO stamp box with squares in all four corners, dating this card's production to the late 1920s to 1930s era.