<p>Two Russian human waste disposal units -- toilets -- on display at the Smithsonian Air and Space Museum in Washington, D.C.
</p>
The women's unit is on the left, the men's unit is on the right.  The male unit was created in 1967, but the female unit was not built until 1986.  Both units were built by JSC Zvezda, a Russian company.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/23165290@N00">Tim Evanson</a> from Cleveland Heights, Ohio, USA
CC BY-SA 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/timevanson/7275763388/">Space toilet - Smithsonian Air and Space Museum - 2012-05-15</a>