https://www.rallyand...mber=9901991358
There is a new German book „Natur and Technik“ (180 pages) with lots of interesting black & white pictures of the Nürburgring.
First source is the archive of family Klein who lived in Adenau and published postcards with their impressions of the circuit and the races.
It is mainly a picture book – no need to know the German language, captions are self-explanatory.
31 pics pre-war, 55 pics of the fifties, 103 pics up to 1974.
And one chapter about the forgotten Südschleife, most interesting with 15 unseen pictures.
Strongly recommended!