Shorpy is a photoblog devoted to high-resolution images from a century (or more) ago. The posts include a bit of commentary about the photos, and you can buy art prints of the images.

“Sidney Lust girls.” Circa 1919, two of Washington, D.C., movie theater owner Sidney Lust’s chorus girls, seen earlier out of costume. National Photo Company Collection glass negative, Library of Congress.

This would be an excellent reference resource for period costumes and hairstyles, in addition to providing all kinds of offbeat images for use in collages and other artwork.

Link (via BoingBoing)