NUMISMATISCHE LITERATUR
HARLAN J. BERK, LTD., CHICAGO. "The Art and Science of Numismatics". Buy or Bid Sale 193 (April 2015); 195 (October 2015); 204 (July 2018); 205 (September 2018); 206 (November 2018); 208 (September 2019; Fixed Price List No. 9. Broschiert. 7 St.