Christopher Columbus whaleback ccengine crop

Sprague painting the s. S. Christopher columbus was a whaleback excursion liner designed by alexander mcdougall and built in 1892-1893 in superior, wisconsin by american steel barge company for service to ferry passengers to and from the world's columbian exposition, and later placed in general and excursion service to various ports around the great lakes. This image is of her engine, built 1892 by s. F. Hodge and co. , detroit. The engine is a triple-expansion reciprocating steam engine. Cylinder dimensions are 26, 42, and 70 inches, with a 42 inch stroke. Date: ilustration presumably created circa 1892, published 1897.