A 1928 Thompson submachine gun concealed inside a violin case. The 1928 Thompson submachine gun hidden inside a violin case has become one of the most recogniz

A 1928 Thompson submachine gun concealed inside a violin case. The 1928 Thompson submachine gun hidden inside a violin case has become one of the most recognizable images associated with the Prohibition era. Hollywood and comic books popularized the idea of gangsters using instrument cases to conce…