Brown dress with embroided flower[?] and side zipper (1970s?)

[196t's]

Good morning/afternoon/night,

I've recently gone to a thrift shop and bought two vintage dresses, one that I've positively identified as 1960s. On the other hand, I haven't figured this one out yet. The brand was founded in 1942, so it dates after that.
It's a brazilian dress with an embroidered figure that looks like a flower, a side zipper and is made out of a heavy fabric (which I also haven't identified).

My best guess is that it's from the 1970s. Am I correct?
Thanks for your time and willingness.

 

[GemGem]

From a distance it looks like a heavy linen, do you have a close up of the fabric? The styling of it looks earlier to me but my knowledge is more around the 80's-90's so i'll leave it to the experts here to help you with dating.

 

[196t's]

From a distance it looks like a heavy linen, do you have a close up of the fabric? The styling of it looks earlier to me but my knowledge is more around the 80's-90's so i'll leave it to the experts here to help you with dating.

Thanks for the help! I hope this is useful to identify the fabric.

 

[poppysvintageclothing]

The fabric looks like a denim. I am seeing 1970s.

 

[196t's]

The fabric looks like a denim. I am seeing 1970s.

That's what I thought at first. It looked very 1970s to me and felt 100% like denim. I also say it's 1970s.

 

[GemGem]

That's what I thought at first. It looked very 1970s to me and felt 100% like denim. I also say it's 1970s.

Clearly denim with the close up!