Help with blouse dating

[plousia]

Hi all, I found this knit blouse with studs and am having trouble dating it. It looks vaguely 40s-ish and I know the 40s seems to have done a lot of studs on clothing, but not sure it could be that old? It is a very fine stretchy knit of some kind of "hard" plant material, I guess might be rayon? Maaaybe mercerized cotton....?

There are no labels. No overlocking on the interior seams.

Sorry for the poor quality photos, I just shot a few on my phone because I'm hoping to get an answer soonish as there are two more identical ones in different colours that I'll go back and get if they're anything interesting, but didn't want to invest in if not.

Thanks in advance.

ETA: I have tried searching and couldn't find anything really similar.

 

[dollsntrolls]

This looks vey 80s, to me. Possibly up to mid-90s. You would need a burn test to really know what it is, but viscose or modal may be accurate, if it acts like rayon, those are similar, but a modern and a different process. They both feel really nice and hold color a lot better than older rayons!

 

[plousia]

Thanks, 80s also occurred to me but I just couldn't place it. Another one for the file...