The American advertiser : designed for the cards and advertisements of mercantile & manufacturing establishments
The pattern
This still is filed under Problem-agitate-solve.
Define
Name the problem, make the cost of leaving it felt, then present the way out as relief.
Mechanism
Tension then release. The offer is not an interruption. It is the only door once the cost of staying is clear.
Verdict
The problem is known but not yet urgent
Why it works
It sells advertising by demonstrating a novel distribution model. It solves the problem of ephemeral newspaper ads by binding ads with reference material.
Steal this when
You are selling B2B services (like advertising or sponsorships) and need to prove the longevity and reach of your medium.