60s and good 70s. I mean 30s revival, Stevie Nicks, London Boutique scene, high disco/glam, Gucci and women's tailoring type 70s rather than Bay City Rollers and novelty flares. 
Such a shame it's associated with sweaty polyester and bad shiny face make up. The truly good stuff is dazzling.
Hate hate hate the fake "foufties" look where idiots put bad 50s repro with 40s hair and call it vintage.
At events you see actual 50s or 40s enthusiasts (or proper rockabilly repro wearers) walk past and the contrast between them and the wannabes is marked.
I like the 20s but can't wear the most iconic styles due to my bust. There are 20s styles with a gentle waist and PJ styles of course. Shame as the hair and make up suits me.