Evidence Lab - Paint Chips
After forensic testing, the lab confirms that the paint chips did indeed come from oil paint used during the middle of the 1800's. Ingredients found include linseed oil (typically used in oil paint from the 1800's) and remnants of the type of aluminum used when paint was first sold in tubes.
Answer the following question to get your next lead...
In which art movement did the development of oil paint in portable tubes allow artists to break from artistic tradition and begin to paint outdoors, capturing the effects of natural light on its subjects such as landscapes?