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Overall walk-around of the Portable Life Support System (PLSS) and Oxygen Purge System (OPS).

Picture 3 of 3.

This is the back of the PLSS (i.e., the side which is visible when worn by an astronaut).

Time picture taken	Fri Jun 22 13:14:44 2007
Location picture taken	Rocketry and Space Flight Gallery (subsequently closed) National Air and Space Museum Washington, DC