Sigma Michigan Manistee & North-Eastern Railroad Depot 1912 Real Photo Postcard

The structure identified as Sigma in 1912 was a railroad station or associated building for the community of Sigma, Washington. Located in Pierce County, Sigma emerged as a logging town along the Tacoma Eastern Railroad. The photograph, dated 1912, captures the building likely shortly after its construction or during significant development, indicating its role in the region's burgeoning timber industry.