Original Hewlett-Packard trademark logo from 1954, based on small, low-resolution JPEG sample found at <a rel="nofollow" class="external text" href="http://www.trademarkia.com/hp-71676499.html">http://www.trademarkia.com/hp-71676499.html</a>, now in the public domain.
<a href="//commons.wikimedia.org/wiki/User:Hydrargyrum" title="User:Hydrargyrum">Hydrargyrum</a>
2011-11-02
<span class="int-own-work" lang="en">Own work</span>