Postcard

The World Famous Soo Locks, Sault Ste. Marie, Michigan

One postcard booket from "The World Famous Soo Locks, Sault Ste. Marie, Michigan." The booklet contains a long fold-out page which has 12 color photographic images of various vessels in the locks at Sault Ste. Marie. (Six images are printed on each side of the fold-out page.) Captions are shown for each image and a brief history of the lock construction is also included. The outer cover of the booklet has blank lines for an address and space for a postage stamp. The booklet was produced by the "Hiawatha Card Co., Mackinaw City, Michigan."