Montgomery Ward & Co. Catalogue No. 104, Spring and Summer 1926
The pattern
This still is filed under Risk reversal.
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
Why it works
It explicitly lays out the four pillars of their complete guarantee (Quality, Saving, Truth, Safe Delivery) and uses highly specific customer testimonials as proof of their longevity and reliability.
Steal this when
When you want to explicitly define what your guarantee covers to remove all perceived risk for the buyer.