Description Title Pittsburg, Pa., 1904Summary Print showing a bird's-eye view of the skyline of Pittsburg at the confluence of the Allegheny and Monongahela rivers. Created / Published Pittsburg : Colonial Litho., c1903 Sept. 18. Subject Headings - Cities & towns--Pennsylvania--1900-1910 - Rivers--Pennsylvania--Pittsburg--1900-1910 - Pittsburg (Lancaster County, Pa.)--1900-1910