50s or early 60s for Harry Popper dress coat and fabric ID

[laurenm]

H Everyone, wondering if this is 50s or 60s and I can't remember the term for this fabric. It feels maybe to be silk? Sorry if this is my second posting, I could have sworn I asked about it but cannot find it in my archived postings!
Lauren

 

[Vinclothes]

Could the fabric be rayon faille?
Marian

 

[laurenm]

Faille! Thanks. That's it. So I guess I should do a burn test to check if it's silk or rayon? Also, am I correct in early 60s?
Lauren

 

[Vinclothes]

If the coat is lightweight for it's size it may be silk. Rayon will be a bit heavier, but to be sure you need to do a burn test.
Marian