Anyone who wants to lose an entire afternoon can visit this German site of European 'caravans' (=trailers) from the 1950s up to now, some of them molded
fiberglass.
Oldie Caravan
Click on 'Hersteller A - Z' for maybe a hundred different European trailer makes with photos and old brochures of past models.
And don't blame me for your lost time or jobs you've failed to do, as you have been warned - you are also recommended to roll out a piece of string behind you as you go, so that if you don't turn up at all for dinner, someone will know where to come looking.....