Visitors' guide to the Centennial Exhibition and Philadelphia : May 10th to November 10th, 1876 : authorized by the Centennial Board of Finance, and approved by the Director-General : the only guide-book sold on the exhibition grounds
This 1875 guidebook by Hamilton F. Webster, published in Philadelphia by J.B. Lippincott & Co., was an official visitor's guide for the 1876 Centennial Exhibition and the city. Its pictures are a folding plan of the exhibition grounds, drawn in colour with paths, buildings and a numbered key, and a black-and-white engraving of a long, multi-storey exhibition hall with carriages and crowds in front. A designer could take from them the clarity of a colour-coded site plan and the rhythm of a long industrial facade seen from a distance.
