City of Pittsburgh antique map. This genuine original vintage map of City of Pittsburgh comes from Colton's Atlas of the World of 1856. This is the second edition of Colton's famous World Atlases. Published in New York by J.H. Colton & Company no. 172 William, Corner Beekman St. This two volume atlas was put out one year after the first edition of 1855. The first volume covered North and South America while the second volume covered the rest of the world. This historic old map of City of Pittsburgh has a blank verso or back side and beautiful coloring on sturdy paper. This historical map of City of Pittsburgh is truly a fine piece of history just prior to the American Civil War. This rare antique map would make a nice addition to any collection in home, office or public area.