<i>Royal Air Force- Central Interpretation Unit / Allied Central Interpretation Unit, 1941-1945.</i><br>
Flight Lieutenant H H Williams demonstrates the Wild A5 'Stereo-autograph' plotting machine to press visitors at Medmenham, Buckinghamshire.  A vital piece of photogrammetric equipment, the Wild A5 produced accurate maps from stereoscopic pairs of photographs, and was in constant use at the CIU and ACIU throughout the war.
Royal Air Force official photographer, Saidman
<p><a rel="nofollow" class="external free" href="http://media.iwm.org.uk/iwm/mediaLib//39/media-39631/large.jpg">http://media.iwm.org.uk/iwm/mediaLib//39/media-39631/large.jpg</a>
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<td>This photograph <a rel="nofollow" class="external text" href="https://www.iwm.org.uk/collections/item/object/205196665">CH 16105</a> comes from the collections of the <a rel="nofollow" class="external text" href="https://www.iwm.org.uk/">Imperial War Museums</a>.
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