Selection for Digitization. The decision was made to scan every flat document that would fit on the equipment available in the Columbia University Libraries Reprography Laboratory. Exceptions were made in three cases where items listed in the finding aid were not scanned. First is duplicate items, and second is lengthy printed matter, for instance libretti. The covers and title pages were scanned but not the texts. Third is all materials over 11.5 x 17". The main category of items not scanned was the technical drawings, many of which were folded and extremely fragile, so that digitization in any case would not have been possible without conservation action to flatten and repair the items.
Many of the watercolors were too large to be digitized in house, but 4x5 color transparencies had been made of almost all of them during a previous project. These transparencies were scanned and added to the image collection, along other miscellaneous 4x5 transparencies that had been made previously.
Finally, the 61 assembled, three-dimensional stage models were photographed and these photographs were digitized. Each model is shown from a number of angles and in many cases important details were also photographed.
Other Images: Columbia's digital collection includes a small number of images from other series in the Urban Collection made for researchers, exhibits, and publications. These images were also added to the Urban finding aid.