Glass plate of a stern view of the screw tugs, Sinclair and Record, breaking ice for the screw bulk freighters, Mataafa and Queen City on February 5, 1908. Arrowhead Bridge between Superior, Wisconsin and Duluth, Minnesota is in the background. Lone man on ice. Slight areas of missing emulsion along the edges. Inscribed 1052. Donor: Kenneth E. Thro Collection. (15 cm. x 20 cm.)