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Micro printing is minute printing included in a stamp design as a security measure. In most cases you will need a magnifying glass to view the micro printing. Recent issues with micro printing are Scott # 4478-81, 4486-87, 4488-89, and 4490-91. Various alpha letters and numbers are used. Example: USPS, 4eveR, 4evr, 4EVR. | 
