Buzz Aldrin  testing THE camera.  ref <a href="https://en.wikipedia.org/wiki/Ann_Montgomery_(NASA)" class="extiw" title="en:Ann Montgomery (NASA)">Ann Montgomery</a> NASA engineer during Apollo era. Guess date as c. 1968
NASA
1968-01-02
<a rel="nofollow" class="external free" href="https://www.smithsonianmag.com/science-nature/ann-montgomery-became-lead-engineer-nasa-during-apollo-managing-lunar-cameras-180972535/">https://www.smithsonianmag.com/science-nature/ann-montgomery-became-lead-engineer-nasa-during-apollo-managing-lunar-cameras-180972535/</a>