Krebs, Otto (German/American 1835-1898), Pittsburgh, Allegheny, and Birmingham 1871, tinted lithograph engraved on stone by William Gillespie Armor (American 1834-1924), published and by Otto Krebs, 19.2 x 42.8 inches, framed in a period Birds Eye maple wood frame measuring 30 x 54 inches, Provenance: J.J. Gillespie and Company, Pittsburgh, Pa.; Pittsburgh, Allegheny, and Birmingham 1871 is one of the most important and detailed images of Pittsburgh made during the 19th Century. Krebs operated the leading lithography studio in Pittsburgh. He was trained in Germany and was one of a group of German immigrants that brought commercial lithography to the United States.