<div class="description">
The original finding aid described this as: Description: Photographic documentation showing 51B crew activities. View of Mission Specialist (MS) William E. Thornton at the foot of the ladder between the middeck (MDDK) and the flight deck (FD). Subject Terms: ASTRONAUTS, CREWS, ONBOARD ACTIVITIES, SPACE SHUTTLE MISSION 51-B, CHALLENGER (ORBITER), SPACELAB Categories: Crew Activities Interior_Exterior: Interior Ground_Orbit: On-orbit Original: Film - 35MM CN Preservation File Format: TIFF</div>
between 29 April 1985 and 6 May 1985 <div style="display: none;">date QS:P571,+1985-00-00T00:00:00Z/9,P1319,+1985-04-29T00:00:00Z/11,P1326,+1985-05-06T00:00:00Z/11</div>
This file was contributed to Wikimedia Commons by <a href="https://www.wikidata.org/wiki/Q59661040" class="extiw" title="d:Q59661040"><span title="reference unit of the National Archives and Records Administration">National Archives at College Park - Still Pictures</span></a> as part of a cooperation project. The donation was facilitated by the <a href="https://en.wikipedia.org/wiki/Digital_Public_Library_of_America" class="extiw" title="w:Digital Public Library of America">Digital Public Library of America</a>, via its partner National Archives and Records Administration.<span style="text-align:left">
<ul><li><a rel="nofollow" class="external text" href="https://catalog.archives.gov/id/22759185">Record in source catalog</a></li>
<li>DPLA identifier: <a rel="nofollow" class="external text" href="https://dp.la/item/32aa64e17a1ecd401ef4e878bcbcae4b">32aa64e17a1ecd401ef4e878bcbcae4b</a></li>
<li>National Archives Identifier:  22759185</li></ul></span>