Marking on a mail piece showing that postage has been prepaid
In philately, indicia are markings on a mail piece (as opposed to an adhesive stamp)[1] showing that postage has been prepaid by the sender. Indicia is the plural of the Latin word indicium, meaning distinguishing marks,[2] signs or identifying marks.[3] The term imprinted stamp is used more or less interchangeably,[1] but some indicia are not imprinted stamps. One example is the handstamp, which can be seen in a photo on this page.