"A postage meter or franking machine is a mechanical device used to create and apply physical evidence of postage (or franking) to mailed items. Postage meters are regulated by a country´s postal authority. A postage meter imprints an amount of postage, functioning as a postage stamp, a cancellation and a dated postmark all in one. The meter stamp serves as proof of payment and eliminates the need for adhesive stamps." - (en.wikipedia.org 14.07.2022)
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