<i>Title:</i> Cohn O'Brien
<p><i>Abstract/medium:</i> 1 negative : glass ; 5 x 7 in. or smaller.
</p>
Per LOC:  Photograph shows track and field athlete and coach Harvey Cohn (1884-1965), left, and boxer Joseph Francis Hagan [known as Philadelphia Jack O'Brien] (1878-1942), right, on the wooden track encircling the roof of the Madison Square Garden.
Bain News Service, publisher
<p>Library of Congress
</p>
<ul><li><i>Catalog:</i> <a rel="nofollow" class="external free" href="https://lccn.loc.gov/2014711855">https://lccn.loc.gov/2014711855</a></li>
<li><i>Image download:</i> <a rel="nofollow" class="external free" href="https://cdn.loc.gov/service/pnp/ggbain/31700/31700v.jpg">https://cdn.loc.gov/service/pnp/ggbain/31700/31700v.jpg</a></li>
<li><i>Original url:</i> <a rel="nofollow" class="external free" href="https://www.loc.gov/pictures/item/2014711855/">https://www.loc.gov/pictures/item/2014711855/</a></li></ul>