Albums of progress photographs of the early construction of City Hall built 1871-1901 on Penn Square after the designs of John McArthur, Jr. Photographs show different stages of the construction of the foundation and lower floor of the building between 1873 and 1875. Includes images of the dirt sub basement; construction materials, equipment, and workers; aerial views of the built foundation; partially completed walls and abutments; and studio views of columns and architectural ornaments. Several of the views include scaffolding; horse-drawn carts; pulleys; piles of construction debris; Pennsylvania Railroad cars on Market Street; and workers and well-dressed men, probably the commissioners, reviewing and posed on or near constructed parts of the building and construction materials. Views also show surrounding cityscape, including the Masonic Temple (Broad and Filbert); United States Mint (1331-1337 Chestnut Street); the Seventh Presbyterian Church (Broad Street above Chestnut Street); Pennsylvania Railroad Freight Depot (13th and Market); La Salle College High School (Filbert and Juniper); Sharpless & Watts, flooring tile (1325 Market Street); the spires of Arch Street Methodist Episcopal Church (s.w. cor. Broad & Arch) and First Baptist Church (n.w. cor. Broad and Arch); and other surrounding businesses (beer hall, wall paper, and furniture) and residences.