This is an unused 1930s Excella Pattern E4588 for a Womens and Misses Slip in Size 16 or 34 Bust. The envelope describes it as "a slip for evening or daytime wear, depending upon the length you make it. The lines are beautifully fitted, and the back is cut low for formal frocks. Shoulder straps are smartly narrow." The pattern consists of three unmarked tissue paper pieces. The instructions are on the back of the envelope. This 1930s Excella Pattern E4588 for a Women's and Misses Slip is in very good condition with no damage to the pattern pieces. The envelope does have some tears on the flap.