Sarah Stocking has thousands of high-quality original vintage posters from all over the world. Most of the posters date to the early 1900's, although there are also original lithographs from the WWI and WWII eras and a select number of modern posters.
The online gallery is updated weekly and provides poster images from their inventory, as well as information on the artist, style, and history of the poster. Prices range from under $200 to over $36,000.

Seropositif by Michel Quarez (1995)

Carnaval 1894 by Jules Cheret (1893)

South Towers - 1939 World's Fair on the San Francisco Bay by Anonymous (1939)

Eat More Corn, Oats and Rye by L. N. Britton (1917)
(Edited from this post published 01.19.07)
Sarah Stocking Fine Vintage Posters
368 Jackson St, San Francisco, CA 94111, USA
415.984.0700
Visit the store page

Comments (5)
lovely - but oh so expensive for the non-conniseur
And so hard to get great copies. I found a vintage 70s poster at the thrift store that I love, but I'd love to get some of the vintage 40s and 50s travel posters.
Anyone know where one can find cheaper re-prints of this kind of stuff?
Art.com or Allposters.com both have a pretty decent selection of vintage reprints. They have a wide variety of pricing points depending on the size and quality of the reprint (regular poster, fine art print, stretched canvas, Giclee print, etc). Hope that's helpful!
Sarah Stocking gallery is amazing, but quite frankly over priced. There are two posters they have that are one of a kinds and i know for a fact they are being sold 3times as much as their estimated value. The staff is surprisingly nice!
They do have some smaller items to purchase for 100-300.
If you're looking for original vintage posters but not trying to break the bank, try samuel owens gallery in Marfa, TX. They have a web site.