Dating peignoir/nightie set

[Pinkie]

Hey guys! Picked up this lovely nightie set. Im not sure where to date it. The gown is sleeveless, the peignoir has long poofy sleeves, the sleeve bands are not elastic. Three buttons and a snap on the gown and peignoir. The label says Gossard Artemis. I think the seems are serged. Its 100% sheer nylon. Thanks!

 

[Circa Vintage Clothing]

The label is similar to a '60s one in the LR (you can see it here). Which tallies to my thoughts too.

Have you looked for a union label?

 

[Pinkie]

I had 60s vibes too, I did look for a union label but there isn't one. Thank you!