*Edited to remove link Here is an album of pictures. I believe it's vintage because the tag is very faded, the hems have a lot of excess fabric, it's unlined, and it has the high neck and similar shape of late 60s or early 70s mini dresses. I'm super new to vintage so correct me if I'm wrong! The 100% polyester tag makes me think it's from the early 70s. But again I'm totally new to this. I just found it at a thrift store on the east coast and would love to know it's approximate age/value. Thank you for your time!