Sz L Organza Ballgown Skirt Black

Black floor length ballgown skirt. Organza overlay with taffeta under skirt. Made in the USA. 100% polyester Does anyone know who actually owns MSK or what MSK stands for?? I can find very little info. Is it a shell company?! I'm assuming this dates from mid to late 80's or early 90's based on woven label and made in USA Looks never worn. Excellent vintage/used condition. No visible flaws. I do my best to check each garment over thoroughly and always pass on any flaws I see. Mistakes can happen and there is a LOT of fabric on this lovely. But as far as I can tell it has never been worn or washed and is in mint condition. Label says Large but since it's from the 80's or 90's please double check here: Waist 14.5 Length: 41.5