Many of these books are well researched and have beautiful large-format photographs that are valuable to violin dealers, experts, and any lover of fine old instruments and bows, but they don't cover the instruments that make up the day-to-day sales of many shops-late19th and early-20th century instruments from Germany and Bohemia.
Ward, Richard (2015) New Book Celebrates Markneukirchen Violins. In: Strings, Vol. 29, No. 7, pp. 55. Available at https://openmusiclibrary.org/article/1007802/.