The controller of the Amstrad GX4000, a video game console released by Amstrad in 1990.  This Europe-exclusive console was a repackaging of Amstrad's line of CPC Plus computers, offering direct conversions of CPC Plus titles.  It was only on the market for a short while before being discontinued.
<a href="//commons.wikimedia.org/wiki/User:Evan-Amos" title="User:Evan-Amos">Evan-Amos</a>
<span class="int-own-work" lang="en">Own work</span>