January Jones Reveals Baby Xander (PHOTOS)

10/12/2011 10:52 am ET | Updated Dec 12, 2011

Xander Jones made his paparazzi photo debut on Tuesday as mom January carried him out of an office building in LA.

January gave birth last month and is already back at work on the 'Mad Men' set, where she was snapped in Betty Draper garb and Xander slept in her trailer.

PHOTOS:


Here are pics of January and other stars on set:

Stars On Set