Sweater Dress: H&M
Hat: Vintage Henry Pollack
Bag: Mulberry Bayswater
Scarf: Gift from Iran
Found this vintage Henry Pollack hat last spring at a flea market for $1, a fraction of what they normally cost. Now, I'm not a huge hat connoisseur but I think some restoration would be needed as the hat has lost some of its shape along the years.
My best advice for finding real vintage designer pieces is go to garage sales/flea markets in affluent neighborhoods of your city. The quality of the clothes sold there is unbeatable.