Wikipedia. Wiki has info about NYC subways conveniently arranged by line. If you go to the section for a specific line, you'll find a map with hot-links to each station it covers. In addition to station layout and connections, each station Wiki page has some history info and serviceable photos of station graphics, as well as the opening date of the station. Caveat: Some of the Wiki pages identify the distinctive "slab-serif" typeface of the mosaics as Times New Roman. I'm not sure what the typeface is (see this site's Design page), but it's not TNR, which wasn't designed until 1931, well after most of these mosaics were created. Here's a list of those lines that include signage featured on this website:
IRT – Seventh Ave. Line
IRT – Lexington Ave. (Eastside) Line
BMT – Jamaica Line
BMT - Broadway Line
New York Transit Museum. The museum has one of the largest repositories of NYC subway-related archives. That said, there's not much on their website that's useful, unless you want to book a party or a group tour. However, you can see a listing of archive holdings, which is useful if you live near enough to pay them a visit.
www.nycsubway.org is the work of David Pirmann, who heads up a vast team of volunteer writers and photographers to document NYC subway stations. Station pages are arranged by line. <Click here> to see the line listing. Very authoritative, lots of photos.
Lucinda.net has a page of Lucinda Surber's excellent photos of a number of subway mosaics.
Wikimedia Commons. Their page of on NYC subway mosaics has 145 images, with a few duplications, mostly great photos. Very useful considering that the images are public domain, i.e., you can use them no charge.
Codex 99 is a blog on design and the visual arts - very wide range of topics. But one blog, 106, has a fine essay on the subway mosaics, and some of the best pictures of them on the internet.
Subway Mosaics: New York City [Paperback book], by Lee Spalding, available from Amazon. Much material on commissioned artwork that abounds in the system, with some attention paid to the original Vickers signs.
Subway Style: 100 Years of Architecture & Design in the New York City Subway, [Hardcover], published by the New York Transit Museum. Available from Amazon. Survey of the history of all design aspects of the system including signage, ticket booths, cars, and maps.
Helvetica and the New York Subway System, [hardcover] by Paul Shaw, is an excellent history of how the subway system standardized its signage in the late 50s and 60s, settling on Helvetica as a style standard. The first chapter has an excellent presentation on the work of Heins & LaFarge and Squire Vickers. Also check out Shaw's very excellent blog on lettering, typography, and design at www.paulshawletterdesign.com
There's wealth of information and pictures available on the early twentieth-century mosaic subway signs of New York on the internet. People love to take pictures of them.
Go to this site's History page to find a listing of websites with excellent info about the history of the NYC subway system and the signage.
The information at left is a good listing of both internet and print materials that I found useful in putting this site together. If you find others, please let me know and I'll post them.
-- Van Hall