<i>Title:</i> Group at headquarters Army of Potomac, Oct. 4, 1862
<p><i>Abstract:</i> Photograph shows at left, Maj. Allen Pinkerton and Friends at the Secret Service Department near Antietam, Maryland.
<i>Physical description:</i> 1 photographic print on card mount : half stereograph, albumen.
</p>
<i>Notes:</i> No. 618.; Gift; Col. Godwin Ordway; 1948.; Mounted with one other photograph.; Alternate title, and photographerfrom Catalogue of photographic incidents of the war, from the gallery of Alexander Gardner...by Bob Zeller, published by the Center for Civil War Photography, c2003.; Title from item.
Civil War Glass Negatives
between 1862 and 1880 <div style="display: none;">date QS:P,+1850-00-00T00:00:00Z/7,P1319,+1862-00-00T00:00:00Z/9,P1326,+1880-00-00T00:00:00Z/9</div>
<p>Library of Congress
</p>
<ul><li><i>Catalog:</i> <a rel="nofollow" class="external free" href="http://lccn.loc.gov/2013647865">http://lccn.loc.gov/2013647865</a></li>
<li><i>Image download:</i> <a rel="nofollow" class="external free" href="https://cdn.loc.gov/service/pnp/ppmsca/34200/34229v.jpg">https://cdn.loc.gov/service/pnp/ppmsca/34200/34229v.jpg</a></li>
<li><i>Original url:</i> <a rel="nofollow" class="external free" href="http://hdl.loc.gov/loc.pnp/ppmsca.34229">http://hdl.loc.gov/loc.pnp/ppmsca.34229</a></li></ul>