Text in German. 30pp , plus pi folding chart and 4pp of monochrome plate illustrations. Academic offprint, in light card covers, rebound in oversized stiff card covers. Slim to. A little edge wear to external covers, which are a bit faded too. Internally covers a little toned with some pencil marks. The first (blank) leaf of the article has an name neatly inked and some notes pencilled, else neat and clean.
