Among the offerings are American coin and sterling silver flatware, marble garden statuary, Japanese and Chinese ivories and porcelain; Confederate Civil War letters and slave receipts; an 18K gold, platinum and diamond ring accompanied by a GIA report (diamond is ??F?? in color, VVS1 clarity); and a selection of couture ensembles and evening gowns by such designers as Halston, Oscar de la Renta,