Pioneer Spacecraft Composite "The Pioneer Family" Probes 6-9, 10, 11 and Venus Orbiter and Multiprobe or Bus (12-13)
NASA/Michael Fornalski
<a rel="nofollow" class="external free" href="https://archive.org/details/AILS-AC82-0178">https://archive.org/details/AILS-AC82-0178</a>; see also <a rel="nofollow" class="external free" href="https://images.nasa.gov/details-ARC-1982-AC82-0178">https://images.nasa.gov/details-ARC-1982-AC82-0178</a>