Back in August, 1971 I was visiting my aunt in the Netherlands, along with another aunt and uncle from the USA. We took a 10 day holiday to Italy; we left at about 4AM thinking we'd get a jump on weekend traffic. WRONG. The autobahn from Aachen south was jam-packed with all these caravans just like that pictured, and everyone going on holiday at the same time. I found it quite peculiar that everyone had essentially the same kind of caravan.