Can you guess which year this photo was taken, or what's going on in it? This was shot right here in New York City, and we'll update this post later with the year, and more details.

UPDATE: This image is from a stunning collection of color photographs from the 1930s and 40s (see them all at the Library of Congress's Flickr page). This one was taken in March of 1943, and the caption reads: "Camouflage class in New York University, where men and women are preparing for jobs in the Army or in industry, New York, N.Y. They make models from aerial photographs, re-photograph them, then work out a camouflage scheme and make a final photograph."