How can I tell if a dress is from the 1960s or 1970s?

To tell if a dress is from the 1960s or 1970s, first look for a label. You may be able to determine the approximate date of the dress simply by researching the designer using reputable online sources. Also, check the zippers. Dresses from the 1960s will usually have metal or nylon zippers. Ones from the 1970s are more likely to be plastic. You'll find a large selection of vintage dresses on 1stDibs.