The United States Fleet off the harbor of Pensacola, Florida H73743

Right half of a line engraving published in Frank Leslie's Illustrated Newspaper, 1861, depicting the scene off Pensacola in mid-April 1861. Features identified in text immediately below the image are (left to right): USS Sabine, USS St. Louis, USS Supply, USS Wyandotte (incorrectly depicted as a side-wheel steamer), Pensacola Navy Yard, and the chartered steamship Atlantic. U.S. Naval History and Heritage Command Photograph.
The complete image shows as a minimum: The fleet of the United States in the harbor of Pensacola. From left to right: steam sloop BROOKLYN, 25 guns; frigate SABINE, 50 guns; sloop ST. LOUIS, 22 guns. Engraving 1861.

RHS side of a centerfold: