Trading stamps are small paper stamps given to customers by merchants in loyalty programs that predate the modern loyalty card. Like the similarly-issued retailer coupons, these ...
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stamps only had a minimal cash value of a few mils (thousandths of a dollar) individually, but when a customer accumulated a number of them, they could be exchanged with the trading stamp company (usually a third-party issuer of the stamps) for premiums, such as toys, personal items, housewares, furniture and appliances.
