Commissioned by World's Fair Corporation president Robert Moses as a celebration of the City's municipal infrastructure, this 9,335-square-foot (867.2 m) model includes every single building constructed before 1992 in all five boroughs, at a scale of 1 inch = 100 feet (1:1200). The model was constructed in 273 sections of 4 by 10 feet (1.2 m × 3.0 m) Formica boards and polyurethane foam, originally depicting 835,000 individual structures. The section showing the Far Rockaway neighborhood was never installed, due to space limitations. The original Panorama included about 25,000 Plexiglass models of major buildings, 100,000 handmade models of less substantial structures, and 50,000 models of churches. For other structures such as tenements and brownstones, Lester Associates created 50,000 copies of each type of structure. In total, Lester Associates manufactured about two to three million buildings, including duplicates.