Only One Thing Keeps You From Earning $5000 a Year!" by M. B. Sackheim, Universal Business Institute ad, The New Success Jan 1921 (leaf 4)
The pattern
This still sits in the public-domain pool. No pattern name yet.
Why it works
Challenging the reader's self-limiting career beliefs. The headline isolates a single missing business skill as the sole barrier to higher pay, making career training feel like an easy bottleneck fix.
Steal this when
When isolating a single addressable skill gap to motivate career-minded adults to enroll in study.