Mysteries at the Museum - Season 6 Episode 2 Strangers on a Train, Madame Tussaud, WD-40

At the Municipal Archives in New York City is a black and white negative containing an image of a deadly weapon used in a sinister plot of revenge. Just uptown in New York's Times Square sits the world famous Madame Tussaud's Wax Museum, where the likeness of one revolutionary woman is on display. And on the grounds of the San Diego Air & Space Museum in California is a large missile that led to the creation of a product that's found in nearly every household in America.