vintage formal dresses

A dress like this one was seen on an episode of Mad Men, but I can't remember for the life of me which episode.
# getflourished

Vintage 1960s Formal Gown, Victorian Revival Empire Waist Floral Maxi Dress, Bridesmaid Wedding... Vintage 1960s Formal Gown, Victorian Revival Empire Waist Floral Maxi Dress, Bridesmaid Wedding Dress Lots of lovely chiffon on this late 60setsy.com vintage formal dresses