Tugboats pulling overloaded boat at Soo Locks, Sault Ste. Marie, Michigan

View of three tugboats pulling an overloaded boat at the Soo Locks, Sault Ste. Marie, Michigan. Printed on front: "Three tugs pulling an overloaded boat off sill of Weitzel Lock, Soo, Mich." Printed on back: "Three tugs pulling an overloaded boat off sill of Weitzel Lock, Soo, Mich. Showing an overloaded boat stuck fast on the sill of the lock and three tugs pulling hard to release her. At times the water goes below its average depth and a heavily loaded boat is apt to scrape on the sill upon which the gates rest when closed. It requires from ten minutes to several hours to set the boats safely over and occasionally many tow-lines are snapped before the work is accomplished. Published by Young, Lord & Rhoades. Made in U.S.A." Handwritten message on back. Card is postmarked September 15, 1909.