View of the Semi-Centennial obelisk, erected in 1905, commemorating the fiftieth anniversary of the opening of the St. Mary's Falls Canal, Sault Ste. Marie, Michigan. Printed on front: "Semi-Centennial monument in Lower Park. Erected 1905, marking the fiftieth year since the erection of the first government lock." Printed on back: "Published by A.E. Young, Sault Ste. Marie, Mich. Made in U.S.A. CT Co., Chicago."
