Research: NYPL's Picture Collection Online

From New York Public Library's Digital Library, the Picture Collection Online is a database of 30,000 public domain digital images from books and periodicals, original photographs, prints, and postcards. Primarily dated pre-1923, the collection includes some of the most popular images in the NYPL collection, housed in folders that can be browsed or searched. <http://digital.nypl.org/mmpco/>