Original print of a 1926 drawing by M. Vernarra, showing Rubinstein seated at the piano and with a facsimile of his signature to the right.  On the verso, a drawing by M. Vernarra, showing Toscanini in three lively conducting poses.  Single leaf, one edge rough, apparently this having been removed from a volume of similar illustrations depicting notable musicians, composers, and conductors.  Overall fine.  10 x 13 inches (25 x 33 cm.).