Translation of a report first published in English by HMSO in 1947, as part of British post-war investigations into German industry. The original was “Investigation into the development of German Grand Prix racing cars between 1934 and 1939”, by Cameron C Earl. This German version (first edition thus) is illustrated with photographs of the vehicles and engines etc, and with fold-out technical diagrams. Large octavo in size (253 mm high). Condition: Small bump to bottom edge of front board, otherwise as new. The folding diagrams are in excellent condition.