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  2. Phony postage stamp discounts are scamming online buyers ...

    www.aol.com/phony-postage-stamp-discounts...

    I spotted an offer online for 100 of the spiral Forever USA stamps, stamps with a gold star in the middle of the design, selling for $29.99 — which amounts to roughly 30 cents a stamp at a time ...

  3. International reply coupon - Wikipedia

    en.wikipedia.org/wiki/International_reply_coupon

    An international reply coupon (IRC) is a coupon that can be exchanged for one or more postage stamps representing the minimum postage for an unregistered priority airmail letter of up to twenty grams sent to another Universal Postal Union (UPU) member country. IRCs are accepted by all UPU member countries. UPU member postal services are obliged ...

  4. Zazzle - Wikipedia

    en.wikipedia.org/wiki/Zazzle

    Zazzle. Zazzle is an American online marketplace that allows designers and customers to create their own products with independent manufacturers (clothing, posters, etc.), as well as use images from participating companies. Zazzle has partnered with many brands to amass a collection of digital images from companies like Disney, Warner Brothers ...

  5. Ponzi scheme - Wikipedia

    en.wikipedia.org/wiki/Ponzi_scheme

    In the 1920s, Charles Ponzi carried out this scheme and became well known throughout the United States because of the huge amount of money that he took in. His original scheme was based on the legitimate arbitrage of international reply coupons for postage stamps, but he soon began diverting new investors' money to make payments to earlier ...

  6. S&H Green Stamps - Wikipedia

    en.wikipedia.org/wiki/S&H_Green_Stamps

    S&H Green Stamps. S&H Green Stamps. S&H Green Stamps was a line of trading stamps popular in the United States from 1896 until the late 1980s. They were distributed as part of a rewards program operated by the Sperry & Hutchinson company (S&H), founded in 1896 by Thomas Sperry and Shelley Byron Hutchinson. During the 1960s, the company issued ...

  7. Coupon collector's problem - Wikipedia

    en.wikipedia.org/wiki/Coupon_collector's_problem

    In probability theory, the coupon collector's problem refers to mathematical analysis of "collect all coupons and win" contests. It asks the following question: if each box of a given product (e.g., breakfast cereals) contains a coupon, and there are n different types of coupons, what is the probability that more than t boxes need to be bought ...