This advertisement is from The Directory of Licensed Stationary Engineers of the State of Ohio, 1903, published by the Engineers Directory Co. of Columbus, Ohio. It highlights the features of the Duluth Stoker, a mechanical stoker designed for use on steamships.

Some background is below from volume XII of The Steamship, an “illustrated monthly scientific journal dedicated to the interests of shipbuilders, marine engineers, electricians and shipowners,” published in 1901.

The lead character in the story, August Wolvin, is the namesake of Duluth’s Wolvin Building, 227 W. First St., which by the 1970s became known as the Missabe Building.