at foot and, on reverse, ink recipe "1 lb. Ultramarine/½ lb. Rose Pink/½ lb. Magnesia", fine. Photo" /> Proof Block Larger Than four Small trial plate of six impressions of the lower value design with <I>waxed corners</I>, in violet on wove paper showing manuscript<I> "Aug 17/68"</I> at foot and, on reverse, ink recipe<I> "1 lb. Ultramarine/½ lb. Rose Pink/½ lb. Magnesia"</I>, fine. Photo | Christie's