While I was in the process of putting together my final 'dress up & review' for the mid-season finale of 'Mad Men', (a series published here recently), I dabbled with the year 1970 again.
This dress has the semblance of a blouse, belt, and long skirt combo, but it is actually a one-piece gown. The dress immediately reminded me of MTM's mid-western American style on 'The Mary Tyler Moore Show'.
Mary Richards (Mary Tyler Moore) wore a very similar look for her (disastrously funny) party in the wonderful S1E2 episode, 'Today I Am A Ma'am'. The episode aired on September 26, 1970. Despite being only the second episode of the esteemed sitcom, it is one of the funniest of the entire series –– which ran from 1970 until 1977.
In it, Mary and Rhoda (Valerie Harper) fret over being single and having crossed over into the 'ma'am' territory. They decide to invite dates to Mary's apartment on the fly.
Rhoda invites someone she barely knows, only to realize that she had unwittingly invited a married couple as her 'date'. Hilarity ensues.
Watch the episode on Hulu.com: http://www.hulu.com/watch/684