330-PSA-152-61 (USN 710897):  This diagram schematically illustrates operation of the Naval Ordnance Laboratory’s new high-speed camera.  This diagram is simplified to show only one of the camera’s two film drums on which images are recorded.  The actual camera has a slotted mirror located at image 1, which divides images into six-equal segments.  Three of these segments are recorded on the film drum depicted on the left while the remaining three segments are recorded similarly on a film drum not shown.  Photograph released July 1961.  (9/22/2015).
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/127906254@N06">National Museum of the U.S. Navy</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/127906254@N06/21625362576/">330-PSA-152-61 (USN 710897)</a>