Vintage 1970s Disco Black and Silver Lurex Convertible Maxi Dress Size XXS/XS

This is a really unusual dress with a lot of versatility. I'm not quite sure if there was an intended style but I came up with a few and I'm sure there are many more options! It's basically a pencil maxi skirt with 2 very long ties. Brand - Unknown, no labels Content - It's a thin lurex fabric Size - I think this would be best for a modern XXS Width - approximately 15.5" across, stretches to 17" Length - 40.5" from the lower side where it splits off, the ties are 83" from that point Condition - There are some pulled threads which is pretty typical of older lurex pieces but I don't see any holes or stains.