Define
The cost of being wrong moves from the buyer to the seller. The buyer can try. The seller eats the failure.
Mechanism
Inverse risk. A trial, a refund, a pay-after-it-works clause. Distinct from a guarantee stack: here the whole bet is flipped, not itemized.
Verdict
The main objection is what if it does not work for me, and fulfillment can absorb the miss.
Don't
Returns would sink us, or the product is consumed on first use. A reversal we cannot pay is a lie.
Copy skeleton
Try [OFFER] for [PERIOD]. If [FAILURE CONDITION], [REVERSE: refund / stop / pay nothing]. You keep [WHAT THEY KEEP]. [ASK]
Gulf note
Name who pays if it fails. Pair with cash-on-delivery when a refund is culturally or operationally weak. A reversal without a desk behind it is a slogan.
Rights-cleared examples
Little Leather Library Corporation ad, Judge magazine, 1921
The picture is the argument: thirty individually titled spines shown at once converts an abstract set into a countable stack, and the eye tallies the value before reading a word.
East India joint stock subscription preamble, 1698
The sheet is drafted as the document you sign rather than as a pitch, so reading it is already most of subscribing - the reader is put in the first person plural from the second paragraph on.
It sorts the audience before it sells, opening each block with the reader's own occupation so four different offers can share one sheet without confusing anyone.
Baltimore Bargain House clothing catalog cover, spring and summer 1901
Addresses the buyer's primary objection (risk of poor quality/fit from a mail-order catalog) head-on with an aggressively strong guarantee and a logical explanation for their low prices (no traveling salesmen).
British Institute of Commerce and Accountancy correspondence course ad, al-Musawwar 1945
The headline asks the ambitious reader whether he is ready for the jobs opening up, then offers a free 200-page guide on how to study at home in spare time.
British Institute of Commerce and Accountancy London Matriculation course ad, al-Musawwar 1945
The English headline names the qualification exactly as an ambitious Cairo clerk would hear it spoken, and the Arabic copy calls it the safest road to success in business and government careers.
Carbolic Smoke Ball cold remedy ad, 1890
Two devices carry it.
Chrysler 52 car ad, al-Musawwar 1928
Stylised figures lunge forward across the top of the ad, so speed and pull are felt before the model name is read.
Chrysler 52 car ad, al-Musawwar 1928
A stylised drawing of figures rushing forward gives the page speed before any word is read, and the headline pairs the number 52 with the promise of a luxury car with a famous name.
Chrysler 72 car ad, al-Musawwar 1928
The car is drawn at a dramatic low angle so it looks long and fast, and the name carries the number 72, which the copy then explains is its speed in miles an hour.
Cutex nail polish ad, al-Musawwar 1927
A drawn hand brushes polish from the bottle onto a nail, so the reader sees the product at work before any copy.
Francis Papazian watch shop ad, al-Musawwar 1928
The headline claims the most accurate and most guaranteed watches in the world, and the body proves the second word with numbers: Zone chronometers guaranteed 15 years, Lucifer 10, al-Nil 5.
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