Vintage Black "Gordon Dress Toronto"

This beautiful below knee vintage dress can be back dated to between the 1960-1980's. It's tagged with a union label that shows it age. In great condition, with a back zipper, black lining and a peekaboo split in the back. It however does not provide a size. For more measurements please message me. Across the waist line is about 28-30" around. This is the tightest part of the dress where the seem is. I would say a size Small to Medium. 100% Polyester Black sequins on the front of dress.