Good Morning, with Instant Postum

"If coffee bothers nerves by day or disturbs rest by night, drink Instant Postum."

Ad from 1920

Kellogg's Drinket, The Coffee-Like Beverage

"Drinket is a real, gratifying, distinctive beverage - not an imitation or a substitute - not a beany, wishy-washy concoction that penalizes your good nature, but a fine, full-flavored, full-bodied, well-rounded beverage, served hot or iced."

Ad from 1920.