De Witt's |American Chess Manual [...] also, the |New rules of the game [...] an |Account of the American Chess Congresses held since 1857, and the records of the Chess Tourneys of 1880 [...] edited by [...]. - Chadwick, Henry (New York De Witt, 1880)
Die Nummer 4931 im Verz. war irrig.
w katalogu 1887 pod nrem 4931
W katalogu z 1896 pod nrem 5001, chociaż to podwójny nr
He
Keywords: szachy; Kongresy; Konstytucje |Regulaminy; Katalogi