Ok, this is the second dress I recently aquired and I LOVE it It's rayon crepe and has a built in train/shawl thing at the back. It's a halter and has delicate buttons up the back, a very low back (with more buttons - the photo looks weird because the mannequin has no butt and it falls lower than it should). I tried it on and it fits but I need someone to do up the buttons and my husband is away at the moment so that's why it's not done up at the back when I'm wearing it Sooo ... most definitely thinking 30's. The material, construction, low back, style etc. Thoughts? Would anyone have an idea which part of the 30's this style is from? Thanks