Lot de 4 ouvrages sur les monnaies et les médailles des Etats-Unis
1- The standard catalogue of United States coins from 1616 to present day, 8ème edition 1957 ; 2- Medals commemorating battles of the American Revolution, Vladimir and Elvira Clain-Stefanelli, 1973 ; 3- American Colonial History illustrated by contemporary medals, C. Wyllys Betts, Boston 1972 ; 4- United States pattern, experimental an trial pieces, third edition, J. Hewitt Judd, M. D.