I'm not sure if they could have started making cameras again at the end of World War II. The factory was gone but I think almost all the staff was gone too. Many German Ernemann cameras didn't survive through the hyper inflationary period around 1927 through 1933. The German economy was in such catastrophic ruins that during the tough winters, out of desperation, people burned anything made from wood, musical instruments, lath boards out of their houses and even their cameras.