Künker, lot of 4 catalogues. Auction 112 (Library Berghaus, 2006), 205 (1000 years European Coin story, mediaeval time, 2012), 226 (collection cook, Bonn among others, 2013) and the Sultan Collection which in 3 parts (auction 199, 210, 231) was auctioned bound together in one volume. Condition II.