This is a Sized 10 P (Petite) Ladies Bubble Hem Silk Skirt.  Waist actual is 30 inches.  

NOTE*** THE WAIST HAS BEEN HEMMED/TAKEN IN ABOUT 1/2" ON EACH SIDE OF THE ZIPPER - PLEASE SEE LAST PICTURE.  THIS WAS DONE TO MAKE IT A BETTER FIT.  

It is from BANANA REPUBLIC and is Lined-Little shows very little use