Marcel Duchamp (1887-1968) and Arturo Schwarz (* 1924), ''The Large Glass and Related Works'', two portfolios with 18 orig. Aquatintaradierungen by Marcel Duchamp and numerous facsimiles in the text. Loose sheets of hand-laid laid paper in layers. Edited by Schwarz, who is responsible for Duchamp's catalog raisonné, in Milan 1967-68. Volume I. in orig. Pamphlet, but without the acrylic glass slip, text sheets 50-92 missing, the etchings to the big glass completely. Volume II in orig. Linen cover with linen slipcase, complete with the 9 etchings from the theme complex ''The Lovers''. Hand signed in the colophon by Duchamp and Schwarz, as well as num. 124 (from 135), about 43 x 26 cm