postage franking

postage stamps, or any other markings recognized and accepted by the postal system or systems providing service, which indicate the payment of sufficient fees for the class of service which the item of mail is to be or had been afforded.

郵便物が受ける、または受けた役務の種類に見合う十分な料金が支払われたことを示す、郵便制度によって認知・受理された郵便切手その他の表示