https://www.google.com/search?q=John+Heartfield+Little+German+Christmas+Tree&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwiy052e59DRAhWGurwKHbW-CEwQsAQIGw&biw=1436&bih=803&dpr=2 ◇ Five controversial Christmas trees - News - Art Fund 1. Pierr…