Simplicity 1940's Retro #1590 and Simplicity 1950's Vintage #1426 
Both patterns are UNCUT with instructions included. Envelopes are in very good condition. 

#1590 Suggests Laundered cotton, Lightweight pique and sateen, eyelet, silks and silk types, charmeuse, challis, crepe de chine, laundered silks-rayons, voile, double georgette, or handkerchief linen. 

#1426 suggests batiks, calico, chambray, gingham, linen types, madras, pique, sateen, or seersucker