Isometrical View of Fairmount Water Works, 1843
Based on its more modern appearance, signature, lettering, and date, we can assume that this 1843 drawing of Faire Mount and its Water Works, drawn in an academic style, was made by Frederic Graff, Jr., then 26 years old, rather than by his father.
Besides showing the three basins added to the Reservoir since 1822, Graff, Jr.included the North and South Gardens and the Wire Bridge, an early and influential wire-cable suspension bridge, on the former site of the Colossus of Philadelphia, designed by Charles Ellet, Jr. Graff also showed the tracks of the Philadelphia and Columbia Railroad, later purchased by the Pennsylvania Railroad, slicing off the corner of the North Garden. These tracks once ran down the middle of Pennsylvania Avenue; since the late 1890s, they have run underneath it.