help dating a hand sewn velvet dress

[maltby]

70s maybe? but it has a very thin metal zipper I would usually associate with older. It's very heavy, fully lined. The bodice is a sort of yarn feeling crochet/embroidery. I included pics of the inside seams of the lining and the outer layer

thanks for any ideas!

omg I got one picture to upload right side up. It's a miracle

 

[Pinkcoke]

Maltby it's hard to see the outline when it's so much bigger than the mannequin. Can you lay it out on the floor (do this on a sheet if you have carpet ) and photograph the whole dress please?

It has elements of 70s (the high neck, lace front) and 80s (scallop neckline, princess seaming) for me and looks like a quality home sew or seamstress sewn dress. It strikes me that it might have been a special outfit for an older woman, and so might be a little old fashioned for when it was made, catering to her familar style in fashion.
Can you show the zip head also please?