See also <a rel="nofollow" class="external free" href="http://www.sciencemuseum.org.uk/objects/space_technology/1976-106.aspx">http://www.sciencemuseum.org.uk/objects/space_technology/1976-106.aspx</a>
<a href="//commons.wikimedia.org/wiki/User:OlafJanssen" title="User:OlafJanssen">OlafJanssen</a>
<span class="int-own-work" lang="en">Own work</span>