On this site, you can search The New York Public Library's vast holdings, initiate a research visit, submit a query to an archivist, and access digitized material. Look for the image to indicate that portions of the collection have been digitized. These materials are free to view and use, even without an NYPL library card.
Available without a Library card:
The New York Public Library Digital Collections provide access to over 700,000 images digitized from primary sources and printed rarities in the collections of The New York Public Library, including illuminated manuscripts, historical maps, vintage posters, rare prints and photographs, illustrated books, printed ephemera, and more