Advertising at is was (in 1905)

Chemically pure cocaine hydrochlorate. Pure rye whisky. One page. 1905.

An advert for Mallinckrodt Chemical Works' cocaine hydrochlorate from 1905

Source:
The Pharmaceutical Era, 20 April 1905.
Image: Wikimedia Commons, Mallinckrodt Chemical Works' Cocaine Hydrochlorate advertisement in the 1905 Pharmaceutical Era magazine.
Public domain.