מאקסוועל הויז איז כשר פאר פסח

This is the 1922 ad by Maxwell House Coffee in the New York Yiddish newspaper the Daily Forward informing new immigrants that coffee "beans" are actually seeds from coffee berries, not legumes, and are therefore Kosher for Passover. The marketing outreach was successful and led to the improbable popularity of the Maxwell House Passover Haggadah, the free prayer book used by American Jews for a century.