Guest pass, <a href="https://en.wikipedia.org/wiki/1920_Democratic_National_Convention" class="extiw" title="en:1920 Democratic National Convention">en:1920 Democratic National Convention</a> held in San Francisco; pass is for June 28, 1920; published by "Hancock Bros., S.F.", according to bottom of the back side of the pass
<p>not known; graphic artists in employ of Democratic Party.
</p>
Wikipedia uploader was <a href="https://en.wikipedia.org/wiki/User:Noroton" class="extiw" title="en:User:Noroton">Noroton</a> at <a class="external text" href="https://en.wikipedia.org">en.wikipedia</a>
Pass for June 28, 1920, probably printed earlier that year.
<p>Via eBay store Web page: <a rel="nofollow" class="external free" href="http://cgi.ebay.com/DEMOCRATIC-NATIONAL-CONVENTION-TICKET-SAN-FRAN-1920_W0QQitemZ120273469947QQihZ002QQcategoryZ33778QQssPageNameZWDVWQQrdZ1QQcmdZViewItem">http://cgi.ebay.com/DEMOCRATIC-NATIONAL-CONVENTION-TICKET-SAN-FRAN-1920_W0QQitemZ120273469947QQihZ002QQcategoryZ33778QQssPageNameZWDVWQQrdZ1QQcmdZViewItem</a>
</p>
uploaded to en:Wikipedia June 22, 2008