Catalog of the Exhibit of the United States Navy Department, World’s Columbian Exhibition, 1893.
They basically had one of everything they navy had on display, listed in this catalogue by the Navy Department responsible. The Ordnance Depart begins on page printed 143 and contiues through page 199. Many photos or drawings of various items, small arms, ammunition, cannons, shells, torpedoes, sights, etc.
There is a link on the left side to download the .pdf file if you like.