The $5,000 Don offered to Adam in 1960 had the same purchasing power as $40,000 in 2014.
The boardroom set is comprised of moveable panels that allow the cameramen to readjust their positions with ease. In the course of moving one of the panels, one of the crew lost control of it and it fell on Jon Hamm's head, causing him to go to hospital where he had seven stitches.
The Atlantic Monthly issue carrying Ken Cosgrove's story is the October 1960 (206, No.4). The portrait on the cover is of historian and former U.S. Rear Admiral Samuel Eliot Morison, who like Ken was also from New England. The actual issue carried one story: "Safe at Last" by Jesse Hill Ford.
This episode was included on the 2008 Emmy Awards 'For Your Consideration' DVD.
The progressive character of Midge, and her bedroom scenes with Don, are mostly backed by Miles Davis playing in the background, whose jazz was the first kind of "stoner" music, before it became mainstream with Bob Dylan and The Beatles, and this would continue in an episode where Don gets high with Midge and her beatnik friends.