In response to many requests, a page has been created on Olive-Drab.com reviewing the history of olive drab paint in the U.S. military.  Starting with Lustreless Olive Drab in 1940, there have been confusingly many shades and gloss variations of olive drab used for U.S. military vehicles.  If you are restoring a vehicle, it can be difficult to decide exactly what paint to buy to either match original paint or to repaint to represent a perticular point in time. 

For the whole story, go here: