#stamp.symbol__impression  a symbol that is the result of printing; "he put his stamp on the envelope"
  supertype:  symbol  an arbitrary sign (written or printed) that has acquired a conventional significance
  subtype:  embossment__imprint  an impression produced by pressure or printing
  subtype:  revenue_stamp__revenuestamp  a stamp that is put on an object to show that a government tax has been paid
  subtype:  seal.stamp  a stamp affixed to a document (as to attest to its authenticity or to seal it); "the warrant bore the sheriff's seal"

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