I wonder which razor/soap/brush combo they use? Probably a stright razor shave by a barber i guess.
http://www.huffingtonpost.com/2013/10/25/jon-hamm-shave-mad-men_n_4163147.html
http://www.huffingtonpost.com/2013/10/25/jon-hamm-shave-mad-men_n_4163147.html