Radway's Almanac and guide to health, 1888
The pattern
This still sits in the public-domain pool. No pattern name yet.
Why it works
Radway embedded medical remedy claims inside astronomical tables, weather predictions, and domestic calendars. Because households kept the almanac hung by the hearth all year, the remedy ads received constant repeat exposure during moments of routine reference.
Steal this when
Steal this when designing utility-led collateral that customers keep on hand for daily reference rather than discard after reading.