This ink on paper drawing represents ~1,000 hours of work over several months. The dimensions are 45 inches high by 79 inches wide (114 cm by 201 cm).
This panorama shows NYC looking northwest from above Governor’s Island and Red Hook. The Statue of Liberty, Ellis Island, and Staten Island are outside the frame. The view is accurate as of summer 2017 and does not include buildings built after this time. View on Google Earth where this image is taken from.
The image features between eight and ten thousand buildings. For the largest and most important buildings, more attention is paid to detail. All of Manhattan’s bridges and major parks are included. Any buildings excluded were done so because they were either too small, too distant to include, or not visible from the angle this image is taken.