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Collector plates were a hot market several decades ago when many consumers purchased them as investments as well as decorative objects. However, instead of increasing in value, most plates turned out to be worth much less than their original price.
However, there are still valuable stamps to be snapped up â and stamp collecting also allows you to enjoy the art of philately as well as the story behind the stamps. And not all valuable ones are ancient: a 1988 13p Christmas stamp may be worth several thousand pounds.