With the metal zipper, I think it could be 50s but I'd LOVE to see the photo of the entire piece - for the eye candy and because it will help date it more decisively.
Also here is some info on Maria Carine and her work for Heim and others from our label resource https://vintagefashionguild.org/label-resource/carine-maria/
Thank you , just posted some more photos , I got it super cheap because it’s not in great condition, but I just couldn’t say no to such a beauty
Oh wow that's a beauty! Love the detailing on the front. I'm still seeing 50s but someone here might be able to give you a more specific date. Thanks for posting the photos!