Promise me that you will finally take Sanatogen now.
Mainzer Fraktur in use for an ad for Sanatogen, a “restorative agent for body and nerves endorsed by 16,000 physicians”. Note the use of Ae instead of Ä in “Aerzten”: In capitals, umlauts were often dissolved to A/O/U + e.
Sanatogen was a “brain tonic” invented by the Bauer Chemical Company, in Germany in 1898 and sold worldwide. In the US it was advertised as a “nerve revitaliser”.