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Receive a 10% credit in your Beckett Wallet for each friend who successfully places an OPG order.Your friend will also save 10% on his first OPG purchase.
These test issues stamps "are full-size versions of regular first series cards, but with blank, gummed backs and perforated edges." These stamps are listed in alphabetical order with their corresponding card number listed immediately after their name. Since these "stamps" show up very infrequently in the hobby -- any additions to this checklist are appreciated.
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