Published by Philadelphia, Philadelphia, 1876
Seller: High Ridge Books, Inc. - ABAA, South Deerfield, MA, U.S.A.
24 pp. It is difficult to determine whether this piece should be listed as a piece of trade ephemera or as a map. It is a wonderful folding promotion for this company's exhibit at the Centennial Exposition. The inside panels consist of a map of the Centennial Grounds, With an ad for the company showing their engine. The external panels have a description of the battery-powered motor, testamonials, and a price list of available models. Given the Centennial's fame as a sort of "coming-out party" for electrical power, it would be hard to find an earlier catalogue for an electric motor to drive sewing machines, etc.