In the last part of the 19th century, the Kendall Manufacturing Company of Providence, Rhode Island, produced a successful soap with the unimaginative name, “Soapine.”
Trade cards were popular promotional and marketing tools for many businesses during that era and Kendall Company was no exception. In fact, their cards were quite prolific and generally attractive in design. Perhaps the most popular one used humor to show soapine to be effective in changing the dark color of a whale to white (clean).
Nonetheless, Kendall could not resist the social hostility of the times toward Chinese and incorporated a Chinese laundryman with endorsing soapine with a mocking sing song approval in the trade card.