Advertisement from "American Druggist" Magazine, 22 October, 1900. Ad for Parke Davis &amp; Company anti-diphtheria serum.
no credit given for authorship of advertisement.
1900-10-22
Advertisement in the "American Druggist" Magazine, 22 October, 1900, scanned by <a href="//commons.wikimedia.org/wiki/User:Infrogmation" title="User:Infrogmation">Infrogmation</a>