At the Deutsches Museum in Munich, there are three complete machine shops. One is from about 1900 with all vintage lathes, kerosene lighting and so forth. One is from the 1960s-1970s and one is ultra-modern with CNC equipment and other modern items. When I was there about 5 years ago, there were about 6 men, all middle aged working in the 1960s shop. I suppose that was the equipment that they were most familiar and comfortable with.