Synopsis
In the course of provenance research at libraries in Austria and Germany, a bookplate with the name Doris J. Klang was documented several times, for example at the Vienna University of Economics and Business and at the Natural History Museum in Vienna. Until 1914 the insurance expert Dr. James Klang was registered in Vienna, whose library was taken over by his son, the renowned lawyer Dr. Heinrich Klang, as can be seen from the probate file. The latter had to sell the books due to persecution in 1939. Provenance features, which, in addition to the relevant bookplate, are also present in the books concerned, refer to the antiquarian bookshop Alfred Wolf as the buyer, who was involved in the National Socialist looting of books.

