Ben Feldman plays Michael Ginsberg on AMC’s Mad Men. Season 6 of Mad Men takes place in 1968 and as far as I can tell there was a Mustache Boom that year. Also it doesn’t really seem like people had to worry about matching their clothes, as evidence in the above picture. In the last episode a guy was wearing a sweater-turtleneck with a cardigan sweater over it. The double sweater is almost impossible to get away with these days.