A. Dürkop: Führer durch das Eisenwerk Unterwellenborn bei Saalfeld a. d. Saale. Saalfeld : Verlag der W. Wiedemannschen Buchhandlung, 
A guidebook on iron and steel works in a rural German backwater? Like a guide to the Louvre or Versailles or some world famous cathedral? It seems like a crazy idea at first sight. And yet nowadays industrial culture tourism is a booming industry. However, what's different about Maxhütte, iron and steel works in Unterwellenborn and the subject of this book, is that it's not an industrial monument at all but a fully operational production facility. The Maxhütte in Unterwellenborn, a small town in Thuringia, was founded in 1872-73 as a subsidiary of the Maxhütte in the Oberpfalz area of Germany. The location in Thuringia was ideal because it was close to an iron ore mining area. Twenty years after the works were built, a gentleman by the name of A. Dürkop, about whom nothing more is known, described the iron and steel works in terms usually reserved for a Gothic cathedral. He explains his rationale in the Preface:
"On his frequent visits to the Unterwellenborn iron works – undertaken either to instruct himself about the manufacture of iron and steel or to act as a guide for other visitors – the author invariably enjoyed the kindest treatment from the factory's officials, and their courteous willingness to answer the layman's questions and explain the processes in the blast furnaces and the machines was tireless.
But not everyone is privileged to visit the foundry a few times every year and have friendly guides to explain and expound. In such circumstances a printed guidebook is most welcome. The reader may peruse it before visiting the site or use it as a guide during the visit. And it can be consulted afterwards in order to refresh one's memory and recall what one has seen on the tour."