Lock Construction (3 of 3)

Cyanotype photograph of lock construction, St. Mary's rapids, Sault Ste. Marie, Michigan.
Abstract/Description: Cyanotype photograph of lock construction, St. Mary's rapids, Sault Ste. Marie, Michigan.
Subject(s): Boats and boating
Soo Locks (Mich.)
Date Created: 1880 (approximate)