Steam Pump; invented by J.R. Maxwell and Ezra Cope, (drawing)
Appears in exhibition catalog as entry no. 5 (Sale info: For Competition).
[Exhibited under heading: "Architectural and Mechanical Drawing."]
Third Cincinnati Industrial Exposition. Official Catalogue of the Works of Painting, Sculpture and Engraving, exhibited in the Art Department. 1872. Cincinnati: Wrightson & Co., Printers, Stereotyped at the Franklin Type Foundry, 168 Vine Street, Cincinnati.