Offloading of the Mobile Quarantine Facility from the prime recovery vessel, the U.S.S. Hornet, July 24, 1969.
Via http://www.hq.nasa.gov/office/pao/History/alsj/a11/ap11-S69-21881HR.jpg from the unusual and NSFW website http://melisaki.tumblr.com/page/91
For more on the NASA airstream: http://choosingscars.blogspot.com/2010/04/remember-apollo-astronauts-getting.html